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Archives (PRELIMS & MAINS Focus) INDIA’S DEEP SEA CAPABILITIES Syllabus: Mains – CURRENT EVENT Context: Recently, India completed wet testing of its Matsya-6000 submersible, capable of diving up to 6 km below the surface to look for underwater minerals off the coast. Background: – Globally, deep-sea technology is critical for economic development, resource exploitation, and national security. Key takeaways Importance of Deep Sea Exploration for India Economic Potential Marine resources: The oceans hold vast reserves of minerals, hydrocarbons, and biodiversity. Hydrocarbons & Gas Hydrates: Essential for India’s energy security and economic growth. Fisheries & Nutraceuticals: Expansion of deep-sea fishing can enhance India’s Blue Economy. Undersea Mining: Exploration of polymetallic nodules for rare earth elements (REEs). Strategic and Security Imperatives Underwater Domain Awareness (UDA): Critical for monitoring deep-sea activities and securing maritime interests. China’s Deep-Sea Capabilities: Largest fleet of submersibles and development of undersea infrastructure and cable-cutting technology. Communication & Infrastructure Undersea Cables carry over 95% of global internet traffic and are crucial for digital economy, financial transactions, and secure communications. India must develop cable-laying and maintenance capabilities. Undersea Pipelines & Mining Equipment – Infrastructure is required for resource exploitation and there is need for robust technology to maintain and protect these assets. Challenges in Deep-Sea Exploration Extreme Pressure Conditions. Lack of indigenous deep-sea vehicles and submersibles and dependence on foreign technology for underwater research and exploration. Deep-sea technology development is capital-intensive. Limited Human Capital & Research Base: Need for specialized training in oceanography, marine engineering, and underwater robotics. Way Forward Institutional & Policy Reforms Upgrading the Department of Ocean Development to a full-fledged Ministry of Ocean Affairs. A dedicated policy framework with clear funding, targets, and mission-mode execution. Establishing a National Deep-Sea Research Institute for technological development. Technological Advancements Hydrographic Research: Developing precision oceanographic mapping tools. Deep-Sea Sensors & Security Systems: Countering undersea cyber and military threats. Strategic Collaboration & Investments Public-Private Partnerships (PPP): Encouraging investment in deep-sea exploration. International Cooperation: Collaborating with leading maritime nations for deep-sea technology exchange. Source: Indian Express WHY TIGERS MATTER Syllabus: Prelims & Mains – ENVIRONMENT Context: A poaching network marked by an unusual coalition of groups from tribal communities in central India, using digital payments with “hawala funds” and separate supply lines to Nepal and Myanmar, has taken out “100 to any number” of tigers since 2022 from various parts of India, an investigation by The Indian Express has found. Background: – As per the 2022-23 tiger census, India has 3,681 tigers occupying 89,000 sq km across five landscapes: Shivalik Hills & Gangetic Plains, Central Indian Highlands & Eastern Ghats, Western Ghats, North Eastern Hills & Brahmaputra floodplains, Sundarbans. Key takeaways Tigers as an Umbrella Species and their Ecological Role Tigers are apex predators and an umbrella species, meaning their conservation indirectly benefits the entire ecosystem by maintaining ecological balance. They regulate herbivore populations (e.g., deer), preventing overgrazing and habitat degradation. Tiger landscapes support critical ecosystems that provide freshwater to over 800 million people in Asia. These landscapes store significant carbon, making tiger conservation vital for mitigating climate change. Cultural Significance of Tigers in India Hindu Mythology: The tiger is depicted as the mount (vahana) of Goddess Durga, symbolizing power and valor. Harappan Civilization: Seals from the Indus Valley, including the Pashupati seal, depict tigers, showing their early cultural significance. Rock Paintings: Bhimbetka cave paintings feature tigers alongside other animals, reflecting their historical importance. Folk Traditions: Pulikali (Kerala): A tiger dance performed during Onam, symbolizing the deep connection between humans and nature. Puli Vesham (Andhra Pradesh): A traditional tiger dance performed during festivals like Dussehra and Muharram. Economic Contribution of Tiger Conservation Eco-tourism: Tiger reserves attract tourists, generating local employment and reducing reliance on unsustainable practices. Ecosystem Services: Healthy tiger habitats protect agricultural lands, fish nurseries, and water resources. Livelihood Support: Conservation projects provide alternative income sources to forest-dependent communities, reducing poaching and deforestation. Status of Tiger Population in India – Largest Tiger Populations (2022): States: Madhya Pradesh (785), Karnataka (563), Uttarakhand (560), Maharashtra (444). Reserves: Corbett (260), Bandipur (150), Nagarhole (141), Bandhavgarh (135). Key Government Initiatives for Tiger Conservation Project Tiger (1973) Launched under Indira Gandhi, it is a Centrally Sponsored Scheme (CSS) to ensure tiger conservation and habitat protection. Initially started in nine tiger reserves, now expanded to 53 reserves covering 75,000 sq km. National Tiger Conservation Authority (NTCA) (2006) Statutory body under the Ministry of Environment, Forest & Climate Change (MoEFCC). Conducts All India Tiger Estimation every four years. Also oversees implementation of Project Tiger and manages funds for tiger reserves. M-STrIPES (Monitoring System for Tigers: Intensive Protection and Ecological Status) – A technology-based surveillance system for tracking tigers, ensuring effective patrolling, and mitigating human-wildlife conflict. Transboundary Conservation Initiatives India-Bangladesh Collaboration: Joint efforts for tiger conservation in the Sundarbans. International Big Cats Alliance (IBCA) (2023): Initiative to protect seven big cat species (tiger, leopard, snow leopard, lion, cheetah, puma, and jaguar) through global cooperation. Source: Indian Express GAIA MISSION Syllabus: Prelims – SCIENCE & TECHNOLOGY Context: The European Space Agency (ESA) shut down its space observatory mission, Gaia on March 27. Background: ESA announced that the spacecraft had been “successfully passivated”, meaning it had been drained of any internal energy sources and will not reboot again. Shortly before, Gaia used its thrusters for the final time to slowly drift into its “retirement orbit” around the Sun. Key takeaways GAIA (Global Astrometric Interferometer for Astrophysics) is a space observatory launched by the European Space Agency (ESA) on December 19, 2013. Its primary goal is to create the most precise 3D map of the Milky Way, tracking over 1.8 billion stars. Gaia was positioned in the Lagrange point 2 (L2), around 1.5 million kilometres ‘behind’ the Earth, when viewed from the Sun. This effectively allowed the spacecraft to view the larger cosmos unhindered by the planet, the Sun and the Moon. Contributions of GAIA Gaia has transformed the way the Milky Way galaxy is viewed. Its data allowed scientists to recreate not just a 3-D map of the galaxy, but also how it will change over

Archives (PRELIMS & MAINS Focus) NATIONAL TECHNICAL TEXTILES MISSION Syllabus: Prelims  & Mains – CURRENT EVENT Context: National Technical Textiles Mission completes 5 years. Background: – With a view to boost technical textiles sector in the country, National Technical Textiles Mission (NTTM) was launched for a period from 2020-21 to 2025-26 with an outlay of Rs.1,480 crores. Key takeaways The National Technical Textiles Mission (NTTM) is a flagship initiative by the Ministry of Textiles, Government of India, aimed at transforming and modernizing the country’s technical textiles sector.  Technical textiles differ from traditional textiles in that they are developed to meet high-performance and specialized requirements across sectors such as agriculture, healthcare, construction, automotive, and defense. The mission was conceived with the key objective of positioning India as a global leader in technical textiles, leveraging its robust textile industry to create new economic opportunities, increase export potential, and drive technological innovation across diverse sectors. Key Components of the Mission The NTTM is structured around four primary components, each targeting a crucial aspect of the sector’s growth: Research, Innovation, and Development (R&D) Objective: Stimulate innovation by supporting research projects that develop new materials, processes, and technologies. Initiatives: Funding for R&D projects which, to date, have reached a cumulative value of around ₹509 crores spread over 168 projects. Outcome: This drives the creation of advanced, high-performance textile products that meet demanding industry standards. Promotion and Market Development Objective: Enhance the market penetration of technical textiles both within India and internationally. Initiatives: Promotion campaigns, infrastructure development, and measures to create awareness among industrial users and consumers. Outcome: Increased adoption of technical textiles in key sectors, strengthening domestic use and global market recognition. Export Promotion Objective: Boost the export potential of India’s technical textiles by developing dedicated export strategies. Initiatives: Formation of an export council, participation in international trade fairs, and creating export-oriented policies tailored for this subsector. Outcome: Enhanced competitiveness and broader global reach for Indian manufacturers. Education, Training, and Skill Development Objective: Build a robust talent pool equipped with the specialized skills required for the technical textiles industry. Initiatives: Establishing training programs, internships, and academic programs in collaboration with top institutes and industries. Outcome: Empowering up to 50,000 individuals, ensuring that the workforce is ready to drive and sustain innovation in the field. Source: PIB PARLIAMENTARY PANEL ON CBI Syllabus: Prelims & Mains – CURRENT EVENT Context: A Parliamentary standing committee has recommended that a separate or a new law be enacted to grant CBI the power to investigate cases without needing consent from the state governments. Background: – The department-related Parliamentary Standing Committee on Personnel, Public Grievances, Law and Justice in its demand for grants report noted that eight states have withdrawn general consent for CBI investigation. Key takeaways The Committee notes that eight states have withdrawn general consent for CBI investigations limiting severely its ability to investigate corruption and organized crime.  To address this problem, the Committee feels a separate/new law granting CBI wider investigative powers without state consent for cases affecting national security and integrity may be enacted by taking views also from State Governments.  The eight states are Kerala, Punjab, Jharkhand, West Bengal, Telangana, Meghalaya, Karnataka, and Tamil Nadu. All of them are ruled by parties that are not part of the Bharatiya Janata Party-led National Democratic Alliance.  Under Section 6 of the Delhi Special Police Establishment (DSPE) act , CBI needs the permission of state governments to investigate cases within those provinces, except in cases where orders are issued from the Supreme Court, high courts or Lokpal. The Parliamentary committee has also asked DOPT to introduced lateral entry for different units within CBI, after the agency informed about not receiving sufficient and suitable nominations of officers from state police, forces which has traditionally been a major source of induction.  The committee said that shortage of suitable nominations for deputation to CBI was a serious concern ,as it affected the operational efficiency. About CBI The Central Bureau of Investigation (CBI) is India’s premier investigative agency, functioning under the jurisdiction of the Department of Personnel and Training (DoPT), Ministry of Personnel, Public Grievances and Pensions. Established: 1941 as the Special Police Establishment (SPE). Renamed as CBI: 1963 by a resolution of the Ministry of Home Affairs. Legal Framework: Works under the Delhi Special Police Establishment (DSPE) Act, 1946. Director: Appointed by a committee comprising the Prime Minister, Chief Justice of India, and Leader of Opposition (LoP). The process of appointment was established by the Supreme Court’s Vineet Narain judgement (1997), and the changes made to The Delhi Special Police Establishment (DSPE) Act, 1946 by The Lokpal and Lokayuktas Act, 2013. Functions of CBI: Anti-Corruption Cases: Investigates corruption cases involving central government employees and PSUs. Economic Offenses: Handles bank frauds, financial scams, money laundering, cybercrime, etc. Special Crimes: Investigates serious crimes such as terrorism, organized crime, and drug trafficking. Suo Moto Jurisdiction: Can investigate only within Union Territories. In states, it requires the consent of the concerned State Government. High-Profile Cases: Can take over cases at the request of states or by Supreme Court/High Courts’ directives. Source: Hindustan Times GREEN GRABBING Syllabus: Prelims – ENVIRONMENT Context: Asian Development Bank (ADB) funded Solar park in Assam is accused of green grabbing. Background: On March 26, the protestors belonging to various political formulations representing tribal bodies rallied against the Assam government’s plans to divert 18,000 bighas (2,396.5 ha) of tribal land to a solar power project supported by the Asian Development Bank (ADB). Key takeaways Green Grabbing is a term used to describe the appropriation of land and natural resources by external entities—be they governments, corporations, or NGOs—in the name of environmental protection, conservation, or sustainable development.  While environmental policies and projects are essential for stewarding natural resources, the process of green grabbing often masks deeper issues of power imbalance and the disenfranchisement of local communities. Green grabbing is essentially a subset of the broader phenomenon of land grabbing. However, unlike traditional land grabs driven mainly by agricultural or industrial interests, green grabbing is justified

Archives (PRELIMS & MAINS Focus) SAHYOG PORTAL Syllabus: SCIENCE & TECHNOLOGY Context: The Centre informed the Karnataka High Court that Elon Musk-owned X’s description of the government’s Sahyog portal as a “censorship portal” is “unfortunate” and “condemnable”. Decoding the context: The HC is currently hearing a challenge by X against the government’s use of Section 79(3)(b) of the Information Technology Act, 2000 (IT Act) to moderate and order the removal of content on social media. Learning Corner: The Sahyog Portal is an initiative by India’s Ministry of Home Affairs (MHA), developed under the Indian Cyber Crime Coordination Centre (I4C) to streamline the process of issuing notices to intermediaries for the removal or disabling of access to unlawful online content.  Launched in 2024, the portal aims to create a safer cyberspace by automating and expediting content takedown requests under Clause (b) of Sub-section (3) of Section 79 of the Information Technology (IT) Act, 2000. Section 79 protects platforms (like x or instagram) from liability for the content that a third party (users) posts on their service. Part (3)(b) of Section 79 states that platforms can lose this protection if they fail to remove unlawful content after the Government or its agencies notify it about said content. Key Features of the Sahyog Portal: Centralized Platform: Brings together authorized government agencies and IT intermediaries, facilitating coordinated action against unlawful online information. Automated Notices: Enables authorized agencies to issue takedown notices directly to intermediaries, ensuring timely removal of content used to commit unlawful acts. Dashboard Monitoring: Provides stakeholders with a national dashboard to monitor the status of requests, including the number of notices issued, actions taken, and pending requests. Operational Process: Issuance of Notices: Authorized agencies, including central ministries, state police, and law enforcement agencies, can flag objectionable content and raise requests for its removal through the portal. Intermediary Action: Upon receiving a notice, intermediaries are expected to act promptly to remove or disable access to the specified content. They can also seek additional information or provide reasons for non-compliance if applicable. Monitoring and Compliance: The portal allows for tracking the status of each request, ensuring transparency and accountability in the content removal process. Controversies and Legal Challenges: The Sahyog Portal has faced criticism from some quarters, notably from X Corp (formerly Twitter), which referred to it as a “censorship portal.” X Corp challenged the government’s use of Section 79(3)(b) of the IT Act, arguing that it leads to a parallel and unlawful content censorship regime.  The Indian government has defended the portal, stating that it provides a structured mechanism for coordination between intermediaries and law enforcement agencies to address unlawful online content. Source : Indian Express SARHUL FESTIVAL Syllabus: ART & CULTURE Context: Adivasis in Jharkhand and the larger Chhotanagpur region will welcome the new year and the spring season with the Sarhul festival on Tuesday (1st April) . Decoding the context: While the festival is widely known as Sarhul among the Nagpuri-speaking populations, different tribes have their own names and particular ways of celebrating it. For instance, the Santal community calls it Baha Parab, whereas among the Ho and Munda peoples it is often referred to as Baa Parab. Learning Corner: The Sarhul Festival is a spring celebration observed predominantly by the tribal communities of Jharkhand and the broader Chhotanagpur region, which also extends to parts of Odisha, West Bengal, Chhattisgarh, and even regions beyond mainland India.  Sarhul not only marks the onset of spring and the new year for these communities but also stands as a symbolic celebration of the union between the Sun and the Earth. Historical and Cultural Significance Nature Worship and Renewal: Sarhul—literally means “worship of the Sal tree” in the Nagpuri language. The Sal tree (Shorea robusta) holds a sacred status among Adivasi communities because it is believed to be the abode of Sarna Maa, the village deity who safeguards natural and social harmony. New Year and Agricultural Cycle: Sarhul is closely linked to agricultural activities. The ceremonies serve as precursor to the ploughing of fields and the sowing of crops, marking the transition from the winter dormancy to the vibrant period of growth. The three day festival centers around sacred groves, known as Sarna Sthals, where key rituals are performed. Day 1: The village pahan (priest) who observes a rigorous fast, fetches water for the ceremonies, houses and Sarna Sthals are cleaned, and Sal flowers gathered for rituals. Day 2: The rituals include offering Sal flowers to the deity, sacrificing a rooster, and seeking prosperity, safety, and good harvest. Holy water is sprinkled across the village, with performances of traditional songs and dances such as Jadur, Gena and Por Jadur. Young men engage in ceremonial fishing and crab-catching for the feast. Day 3: A community feast is held with handia (rice beer) and local delicacies. The festival concludes with the pahan’s blessings and prayers for the community. During the 19th and early 20th centuries, when tribes such as the Munda, Oraon, and Santal were sent to faraway places as indentured labour, Sarhul traveled with them. Today, the festival is celebrated in locations ranging from the tea gardens of Assam to the Andaman and Nicobar Islands, Nepal, Bangladesh, and Bhutan. Source : Indian Express MYANMAR EARTHQUAKE Syllabus: GEOGRAPHY Context: A powerful earthquake of magnitude 7.7 and at least six aftershocks struck central Myanmar, bringing buildings down in the country’s second-largest city, Mandalay, and killing at least 1,600 people. Decoding the context: Neighbouring Thailand was also affected. Parts of Northeast India also felt the shake, although no casualties or significant damage to property has been reported. Learning Corner: Earth’s lithosphere consists of moving tectonic plates whose interactions shape the planet’s geology. Earthquakes occur when these plates suddenly slip, releasing stored elastic strain energy as seismic waves that shake the ground. Myanmar is positioned in a region where several tectonic plates meet. It lies at the confluence of the Indian Plate, Eurasian Plate, Sunda Plate, and the smaller Burma Microplate. This junction makes the region naturally predisposed to seismic activity. Myanmar

Archives (PRELIMS & MAINS Focus) GREEN CREDIT PROGRAMME Syllabus:       GOVERNMENT SCHEMES Context: The Green Credit Programme (GCP) rolled out by the Ministry of Environment, Forest and Climate Change was flagged by the Ministry of Law and Justice before its rollout, over legality of the business model built into it. Decoding the context: Prime Minister Narendra Modi and Sheikh Mohammed bin Zayed Al Nahyan, the President of the UAE, officially unveiled the GCP on December 1, 2023, during the annual United Nations climate conference in Dubai. It was dubbed as a mechanism to incentivise “pro-planet” actions in response to climate change, and one which would promote the Centre’s Mission LiFE (Lifestyle for Sustainable Environment). Learning Corner: At its core, the GCP seeks voluntary participation (read investments) of individuals, companies, industries, and other entities across seven different activities — such as tree plantation, waste management, and water conservation — that will lead to improvements in the environment.  This participation will be incentivised by generating “green credits”, which can then be traded on a domestic market platform to potential buyers looking to meet sustainability targets, or existing legal obligations. For instance, could be exchanged for meeting compliance of compensatory afforestation. The credits can also be used by listed companies as part of their environmental, social and governance disclosures under SEBI’s Business Responsibility and Sustainability framework, indicating efforts taken by these companies on environmental sustainability. How will green credits be calculated? Initially piloted for tree plantation and eco-restoration, including soil moisture conservation and rainwater harvesting. The Indian Council of Forestry Research and Education (ICFRE), Dehradun, serves as the nodal agency for GCP pilot on tree plantation and eco-restoration. Plantations will be carried out in degraded land parcels including open forest, scrubland, wasteland and catchment areas, and they must be five hectares in size or above. Forest departments identify land parcels and allocate them to registered entities, with plantations to be completed in two years. Green Credit Calculation: 1 grown tree = 1 green credit, subject to a minimum of 1,100 trees per hectare. Criticism & Concerns GCP has been criticised for incentivising forest diversion for industries, by generating tradable credits which could also be used to meet legal obligations such as compensatory afforestation.  It has also been criticised for promoting plantations on degraded lands, open forests and scrub lands, which experts have argued offer unique and important ecological services. Under the Van (Sanrakshan Evam Samvardhan) Adhiniyam, 2023, non-forest land equivalent to forest land used for industries and development projects is mandated for compensatory afforestation. Only if non-forest land is unavailable, twice the size of degraded or unclassed forest land is used for compensatory afforestation. However, GCP mandates use of degraded forest land for plantations. It also has complementary provisions which allow exchange of credits, generated by paying money, for meeting the compensatory afforestation compliance. This translates into compensating for older forests with existing forest land, rather than adding non-forest land into the forest cover, as laid down in the Van Adhiniyam. Source : Indian Express BIOLOGICAL WEAPONS CONVENTION Syllabus:               INTERNATIONAL Context: Fiftieth anniversary of the entry into force of Biological Weapons Convention (BWC) was marked recently. Decoding the context: As the first multilateral disarmament treaty to ban an entire class of weapons of mass destruction, the BWC has played a crucial role in establishing the global norm that the use of disease as a weapon is unacceptable. Learning Corner: The Biological Weapons Convention (BWC) is a landmark international treaty that prohibits the development, production, acquisition, stockpiling, and use of biological and toxin weapons. The concept of biological warfare—using disease-causing organisms or toxic substances as weapons—has troubled humanity for centuries. The BWC formally arose from the recognition that biological agents, if weaponized, could lead to devastating epidemics and widespread disruption.  Negotiated in the shadow of the Cold War, the BWC was opened for signature on April 10, 1972, in ceremonies held in London, Moscow, and Washington, D.C.  It entered into force on March 26, 1975, after the requisite number of states had ratified the treaty. The negotiations built upon earlier disarmament efforts, notably the 1925 Geneva Protocol, which had prohibited the use—but not the possession or development—of biological weapons. Key Provisions The treaty is relatively concise in its text—even though it addresses an entire class of weapons, it consists of just 15 articles that set out clear prohibitions and obligations. The main provisions include: Prohibition on Development and Production: States Parties undertake not to develop, produce, or acquire biological agents or toxins that have no justification for prophylactic, protective, or other peaceful purposes. Stockpiling and Retention: The treaty prohibits the stockpiling, transfer, or possession of such agents and toxins, ensuring that no country can build secret arsenals of biological weapons. Obligations to Destroy Existing Stockpiles: States are required to eliminate or destroy any existing weapons, facilities, or stockpiles that could be used for biological warfare. Peaceful Use of Biotechnology: The convention underscores that scientific advances in biology and biotechnology must serve only peaceful and beneficial purposes. Despite its clear prohibitions, the Biological Weapons Convention (BWC) lacks formal verification measures, a significant shortcoming. Unlike nuclear and chemical weapons treaties, which have stringent verification regimes, the BWC relies solely on transparency and mutual trust among states, making enforcement challenging. Membership: As of now, 188 countries are parties to the treaty. India signed the BWC on January 15, 1973 and ratified it on July 15, 1974. Source : UN NAINI LAKE Syllabus:             GEOGRAPHY Context: The Naini Lake, one of Nainital’s key attractions, has recorded a water level of 4.7 feet — marking a five-year low. Decoding the context: Nainital Lake in Nainital Town of the Nainital district, often called the Lake District of India, is one of the four important lakes of Kumaon; the other three are Sattal Lake, Bhimtal Lake and Naukuchiyatal Lake. Learning Corner: Naini Lake, also known as Nainital Lake, is a natural freshwater lake located in the picturesque hill town of Nainital in the Kumaon region

Archives (PRELIMS & MAINS Focus) HYPERSONIC MISSILES Syllabus:     SCIENCE & TECHNOLOGY Context: Russian President Vladimir Putin launched Perm, a nuclear-powered submarine with hypersonic Zircon missiles. Perm is the first of its kind to be equipped with Zircon (also spelled Tsirkon) missiles as a standard feature. Decoding the context: According to the Russian news agency TASS, Putin described its launch as a “milestone event” for the Russian navy. Learning Corner: Hypersonic missiles are advanced weapons that travel at speeds of Mach 5 (five times the speed of sound) or higher (≥ 6,174 km/h). They are designed for high-speed, maneuverability, and rapid strike capability. Advantages of Hypersonic missiles The main feature of a hypersonic missile is its maneuvrability, meaning its trajectory can be altered according to the intended target. These are generally slower than intercontinental ballistic missiles. Hypersonic weapons can potentially evade missile shields and early warning systems. Ground-based radars or terrestrial radars cannot detect hypersonic missiles until late in the flight of the weapon. This makes it difficult for the responders to the missile attack to try to intercept the missile. Hypersonic weapons can enable responsive, long-range strike options against distant, defended or time-critical threats (such as road-mobile missiles) when other forces are unavailable, denied access or not preferred. Conventional hypersonic weapons use only kinetic energy, energy derived from motion, to destroy unhardened targets or even underground facilities. The two types of hypersonic weapons systems are Hypersonic Glide Vehicles (HGVs) and Hypersonic Cruise Missiles (HCMs).  HGVs are launched from a rocket before gliding to the intended target, while HCMs are powered by air-breathing high-speed engines or ‘scramjets’ after acquiring their target. What to know about ZIRCON According to Russia, the Zircon can reach eight times the speed of sound, has a range of 625 miles and can carry a 660-pound warhead. If this is accurate, Zircon would be one of the fastest in the world, “making it nearly impossible to defend against due to its speed alone.” Source : Indian Express INDIA’S THREE-STAGE NUCLEAR PROGRAMME Syllabus:             SCIENCE & TECHNOLOGY Context: A fiery exchange erupted in Rajya Sabha when Congress MP Jairam Ramesh questioned the progress of phase 2 of the nuclear programme of India, the status of the fast breeder reactor in Kalpakkam, and the plans for setting up thorium reactors for Phase 3. Decoding the context: India’s nuclear journey began shortly after Independence with the establishment of the Atomic Energy Commission in 1948. In 1956, Asia’s first research reactor, Apsara, was commissioned at the Bhabha Atomic Research Centre (BARC) in Trombay. India was the second Asian nation to build a nuclear power plant in 1969 at Tarapur, just after Japan and long before China.  Learning Corner: India owes the vision of the three-phase programme of nuclear power to ensure energy security to Dr Homi J Bhabha, the father of India’s nuclear programme, and Dr Vikram Sarabhai, who recognised the need for developing Fast Breeder Reactor (FBR). Three-stage nuclear programme Stage I: Pressurised Heavy Water Reactors (PHWRs) Fuel and Operating Principle: In the first stage, India relies on Pressurised Heavy Water Reactors that use natural uranium as fuel. Key Characteristics: These reactors utilize heavy water (deuterium oxide) as both a moderator and coolant, allowing them to efficiently sustain the nuclear chain reaction with low-enriched fuel. Outcome: A byproduct of this stage is the production of plutonium-239 in the spent fuel, which is essential for the next phase of the programme. Stage II: Fast Breeder Reactors (FBRs) Role of Plutonium: Stage II capitalizes on the plutonium produced in Stage I. Fast Breeder Reactors use a mix of plutonium and natural uranium in a process known as “breeding.” Breeding Process: These reactors are designed to generate more fissile material than they consume. Fast neutrons (without slowing by a moderator) convert the fertile uranium-238 into additional plutonium, thereby increasing the fissile inventory. Objective: The goal is to build up a significant stock of fissile material that will bridge the gap between the limited uranium resources and the future utilization of thorium. Implementation Status: The Prototype Fast Breeder Reactor (PFBR) at Kalpakkam is a critical milestone in this stage, although its progress has faced delays. Stage III: Thorium-Based Reactors Rationale for Thorium: India possesses one of the world’s largest reserves of thorium (approximately 25% of the global share), but only limited uranium resources. Thorium-232, which is not fissile in its natural state, needs to be converted (or “bred”) into uranium-233 through neutron irradiation. Reactor Development: The final stage envisions advanced thermal breeder reactors—such as Advanced Heavy Water Reactors (AHWRs) and other concepts like molten salt reactors—that utilize a thorium–uranium-233 fuel cycle. Long-Term Vision: Once the necessary fissile material has been accumulated in Stage II and the technology for breeding uranium-233 from thorium is perfected, India aims to achieve sustained nuclear power generation that relies primarily on its abundant thorium resources. Impact: This stage is expected to drastically reduce dependence on imported uranium and pave the way for a self-reliant nuclear energy programme lasting for centuries. Source : Indian Express BAY OF BENGAL INITIATIVE FOR MULTI-SECTORAL TECHNICAL AND ECONOMIC COOPERATION (BIMSTEC) Syllabus:           INTERNATIONAL Context: External Affairs Minister (EAM) S. Jaishankar emphasized that BIMSTEC should adopt a more ambitious approach amid the ongoing global churn that is creating a new world order which is more regional and agenda-specific. Decoding the context: Addressing a meeting of foreign ministers of the BIMSTEC in Bangkok, Jaishankar emphasised the central role of India, especially its landlocked northeastern region, in forging transport and connectivity linkages. The meeting was part of the preparations for the Bimstec Summit, and was held hours after US President unveiled his reciprocal tariffs. Learning Corner: BIMSTEC is a regional organization comprising countries around the Bay of Bengal that aims to foster economic and technical cooperation. The organization bridges South Asia and Southeast Asia. BIMSTEC comprises seven member states: South Asia: Bangladesh, Bhutan, India, Nepal, Sri Lanka Southeast Asia: Myanmar, Thailand It was established on June 6, 1997, through the Bangkok Declaration. Initially known as BIST-EC (Bangladesh, India, Sri

Archives (PRELIMS & MAINS Focus) SPEAKERS AND DEFECTION Syllabus:   POLITY Context: The Supreme Court took a strong stand against prolonged inaction by Speakers in deciding disqualification petitions under the anti-defection law, asserting that it cannot remain “a mute spectator”. Decoding the context: The court was hearing a case related to the disqualification of Bharat Rashtra Samithi (BRS) MLAs from Telangana who defected to the ruling Congress. The petitions, pending before the Speaker for an extended period, prompted the bench to question whether courts should remain powerless if no action is taken for years. Learning Corner: The Tenth Schedule was inserted into the Indian Constitution by the 52nd Amendment Act of 1985. Its primary purpose is to curb political defections (often called “horse-trading”) by presiding over the issue of disqualification of legislators who defect from their political parties.  Grounds for Disqualification under Anti-Defection Law – A legislator (MP or MLA) can be disqualified: If an elected member voluntarily gives up the membership of their political party. If they vote or abstain from voting in the legislature against the party’s directive (whip) without prior permission. If an independent member joins a political party after the election. If a nominated member joins a party after six months of nomination. Exceptions –  Merger provision: If 2/3rd of a legislative party merges with another party, it will not be considered defection. Earlier exception for split by 1/3rd members was removed by the 91st Amendment Act, 2003. Role & Powers of the Speaker (or Chairman) Final Authority: The Speaker or Chairman is the final deciding authority on disqualification under the Tenth Schedule. Quasi-Judicial Authority: The Speaker’s decision acts in a quasi-judicial capacity. Judicial Review: Initially, the Speaker’s decision was not subject to judicial review. However, in the Kihoto Hollohan case (1992), the Supreme Court ruled that: Speaker’s decision is subject to judicial review. Courts can review the legality and constitutionality of the Speaker’s decision after it is made. Criticism of Speaker’s Role: Bias concerns arise as the Speaker belongs to a political party. Delays in decision-making allow legislators to hold power despite defection. Source : Hindustan Times HEARD ISLAND AND MCDONALD ISLANDS Syllabus:           GEOGRAPHY  Context: Heard and McDonald islands featured in a list released by the White House of “countries” that would have new trade tariffs imposed. Decoding the context: Heard Island and McDonald Islands are among several “external territories” of Australia listed separately in the tariff list to Australia, which will see a 10% tariff imposed on its goods. External territories are part of Australia and not self-governing but have a unique relationship with the federal government. Such territories featured on the White House list were the Cocos (Keeling) Islands, Christmas Island and Norfolk Island. Learning Corner: Heard Island and McDonald Islands (often abbreviated as HIMI) are a remote group of subantarctic volcanic islands that form an external territory of Australia. Located in the southern Indian Ocean, the islands lie roughly 4,100 kilometers southwest of Perth, Australia, and about 1,600 kilometers north of Antarctica. As the only volcanically active subantarctic islands they ‘open a window into the earth’, thus providing the opportunity to observe ongoing geomorphic processes and glacial dynamics.  Composition: The territory consists primarily of two island groups: Heard Island: The larger of the two, known for its rugged terrain, extensive glaciation, and active volcanic features. McDonald Islands: A smaller group that, while less extensive than Heard Island, has experienced notable volcanic activity in recent decades. Geological and Volcanic Features Volcanic Origin: Both Heard and McDonald Islands are volcanic in origin. They lie on the Kerguelen Plateau, which is a vast submarine volcanic province. Volcanism: Heard Island is home to Big Ben, an impressive volcanic complex, whose highest point is Mawson Peak (approximately 2,745 meters above sea level). This active volcano is one of only two in the Australian external territories. McDonald Islands have also exhibited volcanic activity, including eruptions that have altered the shape and size of the landmass. Ecological and Environmental Significance Pristine Ecosystems: The islands possess exceptionally well-preserved subantarctic ecosystems. Their isolation has helped protect these areas from invasive species and significant human disturbance. Biodiversity Hotspot: Despite being uninhabited, the islands serve as breeding grounds for a variety of marine birds (such as penguins, albatrosses, and petrels) and marine mammals, including seals. Protected Status: Recognized for their outstanding natural values, the territory is designated as a UNESCO World Heritage Site. These islands are administered by Australia and are managed as a nature reserve. Access is highly restricted, typically limited to research expeditions due to the challenging environmental conditions and the emphasis on conservation. Source : The Guardian EXERCISE INDRA Syllabus:         INTERNATIONAL Context: The 14th edition of the Indian – Russia bilateral naval exercise INDRA, a cornerstone of the enduring maritime partnership between India and Russia, has concluded. Decoding the context: Since its inception in 2003, Exercise INDRA epitomises the long-term strategic relationship between the two Navies. Learning Corner: Exercise Indra is a biennial bilateral naval exercise between the Indian Navy and the Russian Navy. Objectives and Significance Enhancing Interoperability: Exercise is designed to improve mutual understanding and coordination. The drills focus on interoperability in a wide range of operations—from tactical maneuvers to anti-air drills—thereby enhancing the ability of both sides to work together during times of crisis. Strategic Maritime Partnership: Beyond its operational focus, Indra serves as a symbol of the strategic relationship between India and Russia, echoing decades of defense collaboration. Skill Enhancement and Knowledge Exchange: Through subject matter expert exchanges (SMEEs), reciprocal visits, and joint pre-sail briefings, both navies gain valuable insights into each other’s operational tactics, thereby enriching their tactical acumen and strategic planning. Exercise Indra is typically conducted in two distinct phases: Harbour Phase: This phase is geared toward planning and the exchange of technical and tactical information, ensuring both sides are aligned before heading out to sea. Sea Phase: The sea phase demonstrates and tests the operational effectiveness of both navies in a realistic maritime setting. Source : PIB PRIME MINISTER’S NATIONAL RELIEF

Archives (PRELIMS & MAINS Focus) TIPITAKA Syllabus: ART & CULTURE Context: Prime Minister Modi who is on a state visit to Thailand was gifted the holy scripture of ‘World Tipitaka” by his Thailand counterpart Paetongtarn Shinawatra. Decoding the context: The Tipitaka, also known as the Tripitaka in Sanskrit, is a revered compilation of Lord Buddha’s teachings and serves as the principal Buddhist scripture. Learning Corner: The Tripitaka, also known as the Pali Canon, is the earliest and most authoritative collection of Buddhist scriptures. The term Tripitaka (Sanskrit: त्रिपिटक) or Tipitaka (Pali: तिपिटक) translates to “Three Baskets,” referring to the three main divisions of Buddhist scriptures: Vinaya Pitaka (Basket of Discipline) Deals with monastic rules and discipline for monks (bhikkhus) and nuns (bhikkhunis). Contains over 220 rules for monastics. Also includes stories and justifications for the rules (origin stories). Significance: Establishes the Sangha’s code of conduct, promoting harmony and discipline. Sutta Pitaka (Basket of Discourses) Contains the teachings and sermons of Gautama Buddha. Divided into 5 Nikayas (collections): Digha Nikaya – Long Discourses Majjhima Nikaya – Middle Length Discourses Samyutta Nikaya – Connected Discourses Anguttara Nikaya – Numerical Discourses Khuddaka Nikaya – Minor Collection (includes Dhammapada, Jataka tales, etc.) Significance: The main source of Buddhist philosophy and ethical teachings. Abhidhamma Pitaka (Basket of Higher Doctrine) Contains philosophical and psychological analysis of Buddhist doctrine. More abstract and systematic. Deals with classification of mind, matter, mental states, etc. Significance: Basis for later Buddhist metaphysics and psychology The Tripitaka was originally transmitted orally by Buddhist monks before being written down in various languages, including Pali, Sanskrit, Chinese, and Tibetan. The Theravāda school preserves the only complete Tripitaka in Pali, while other Buddhist traditions have their own versions, such as the Sarvāstivāda Tripitaka in Sanskrit. The texts were compiled and finalized during early Buddhist councils, particularly the First Buddhist Council, held shortly after the Buddha’s death. Source : CNBC ZERO HOUR Syllabus:           POLITY Context: Lok Sabha on Thursday (April 3, 2025) made a record when the Zero Hour lasted for more than five hours and a whopping 202 MPs spoke. Decoding the context: Fulfilling the promise made in the Business Advisory Committee (BAC) meeting, Speaker Om Birla ensured the extension of Zero Hour. Learning Corner: Zero Hour is an important parliamentary device in India that allows Members of Parliament (MPs) to raise urgent matters without prior notice. It is an informal practice that takes place immediately after Question Hour, typically starting at 12 noon—hence the name “Zero Hour.” Key Features of Zero Hour The concept of Zero Hour originated in India, not borrowed from any foreign parliamentary system. Not Mentioned in Rules of Procedure: Unlike Question Hour, Zero Hour is not formally listed in parliamentary rules but has evolved as a convention. Raising Urgent Issues: MPs can bring up matters of public importance that require immediate attention. Notice Requirement: MPs must submit their requests before 10 AM on the day of the session to the Speaker (Lok Sabha) or Chairman (Rajya Sabha). Note: Here, same day request is sufficient unlike other devices like question hour where prior notice is required. Discretion of Presiding Officers: The Speaker or Chairman decides whether to allow the issue to be raised. Source : The Hindu INDIA’S COAL BOOM Syllabus:       ECONOMY Context: India achieved a historic milestone by surpassing one billion tonnes (BT) of coal production on 20 March 2025, in FY 2024-25—11 days ahead of last year’s 997.83 million tonnes (MT). Decoding the context: The coal sector’s success is attributed to the tireless efforts of Coal Public Sector Undertakings (PSUs), private players, and the dedicated workforce of around 5 lakh mine workers across more than 350 coal mines.  Learning Corner: India’s coal production has reached 1047.57 MT (Provisional) in FY 2024-25, compared to 997.83 MT in FY 2023-24, marking a 4.99% growth. Coal imports fell 8.4% to 183.42 MT in April-December 2024 from 200.19 MT in the same period of FY 2023-24, saving $5.43 billion (₹42,315.7 crore) in foreign exchange.  Government initiatives like Commercial Coal Mining and Mission Coking Coal boosted domestic coal output by 6.11% during this period, reducing import dependence. Economic significance of the coal sector:  With the fifth-largest coal reserves and as the second-largest consumer, coal remains crucial, contributing 55% to the national energy mix and fuelling over 74% of total power generation. Despite renewable energy growth, coal-based thermal power will remain essential, with its share projected at 55% by 2030 and 27% by 2047. Railways & revenue: Coal stands as the single largest contributor to railway freight, with an average share of nearly 49% of total freight income amounting to Rs. 82,275 Crore in the fiscal year 2022-23 alone. This revenue contribution has surpassed 33% of total railway earnings. Government earnings: The coal sector contributes over Rs. 70,000 Crore annually to the central and state governments through royalties, GST, and other levies. Employment: The sector provides jobs to over 239,000 workers in Coal India Ltd and thousands more in contractual and transport roles. Economic growth: Substantial investments in capital expenditure, averaging Rs. 18,255 Crore annually over the past five years, have facilitated infrastructure development and resource optimization within coal sector PSUs. Source : PIB SENTENELESE Syllabus:           NATIONAL Context: A man was arrested in Andaman and Nicobar Islands for allegedly entering the prohibited tribal reserve area of the North Sentinel Island, home to the indigenous Sentinelese people, one of the last uncontacted tribes in the world. Decoding the context: According to the police, Mykhailo Viktorovych Polyakov is a 24-year-old US national who arrived in Port Blair on March 26 and ventured to North Sentinel Island from the Khurmadera beach of the archipelago, police said. Learning Corner: The Sentinelese are an indigenous people who inhabit North Sentinel Island, located in the Andaman and Nicobar Islands of India.   Along with the Great Andamanese, the Jarawas, the Onge, the Shompen, and the Nicobarese, the Sentinelese are one of the six indigenous (and often reclusive) peoples of the Andaman and Nicobar Islands.  They are one of the most isolated tribes in the world and have consistently resisted contact with outsiders. Their language, known as Sentinelese, remains largely unclassified, and very little is known about its structure or relation to other Andamanese languages. They are believed to

Archives (PRELIMS & MAINS Focus) PAMBAN RAIL BRIDGE Syllabus: Category: GEOGRAPHY Context: The vertical lift span of the new Pamban Rail Bridge, inaugurated by Prime Minister Narendra Modi on Sunday (April 6, 2025), caused concern among senior railway officials when the lifted centre span became stuck midway as it was being lowered. Decoding the context: For nearly a century, Pamban Rail Bridge remained the longest sea bridge in India until the Bandra-Worli Sea Link (Mumbai) came up. Learning Corner: The Pamban Rail Bridge is a historic and vital railway bridge in India, connecting Rameswaram Island (Pamban Island) to the mainland in Tamil Nadu, across the Palk Strait. It was India’s first sea bridge, originally opened in 1914 and and was the only link to Rameswaram until a road bridge was opened in 1988. Key Features Original Structure: The old Pamban Bridge was a bascule bridge, meaning it had a section that could be lifted to allow ships to pass. New Vertical Lift Bridge: Recently, a new Pamban Rail Bridge was inaugurated, featuring a vertical lift mechanism that allows ships to pass underneath more efficiently. Length: The bridge spans 2.07 kilometers across the Palk Strait. Engineering Marvel: The new bridge is designed to last 100 years, with stainless steel reinforcements and fully welded joints to withstand harsh marine conditions Source : The Hindu KHELO INDIA YOUTH GAMES Syllabus:  Category: NATIONAL Context: The seventh edition of the Khelo India Youth Games will be staged in five cities of Bihar from May 4 to 15. Decoding the context: This edition is expected to feature over 10,000 athletes competing in more than 25 sports disciplines. Learning Corner: The Khelo India Programme is a national initiative launched by the Government of India in 2018 to promote a robust sports culture at the grassroots level. Key Components of the Khelo India Programme: Creation and Upgradation of Sports Infrastructure: Developing and modernizing sports facilities across the country to provide athletes with world-class training environments. Sports Competitions and Talent Development: Organizing events like the Khelo India Youth Games to scout and nurture young athletes. Promotion of Inclusiveness through Sports: Ensuring equal opportunities for women, differently-abled individuals, and other marginalized groups to participate in sports. Revival of Indigenous Games: Traditional Indian sports like Mallakhamba, Kalaripayattu, and Gatka are promoted. Major Initiatives Under Khelo India:  Khelo India Youth Games (KIYG) – Annual multi-sport event for under-17 and under-21 athletes. Khelo India University Games (KIUG) – National-level competition for university students. Khelo India Winter Games – Held in Jammu & Kashmir and Ladakh to promote winter sports. Khelo India Centres – Specialized training centers for different sports. Khelo India Youth Games (KIYG): The Khelo India Youth Games are an integral part of the Khelo India Programme, serving as a platform for young athletes under the age categories of 17 and 21 to showcase their talents.  The inaugural edition was held in 2018 in New Delhi, featuring 18 sports disciplines. 2024 (6th Edition): Held from January 19 to 31 across four cities in Tamil Nadu—Chennai, Madurai, Trichy, and Coimbatore. The event featured 26 sports disciplines, including traditional games like Kalaripayattu and Mallakhamb. 2025 (Upcoming 7th Edition): Scheduled from May 4 to 15, 2025, with Bihar hosting events across five cities: Patna, Rajgir, Gaya, Bhagalpur, and Begusarai. Additionally, select disciplines such as shooting, gymnastics, and track cycling will be held in New Delhi. Source : The Hindu VIBRANT VILLAGE PROGRAMME (VVP) Syllabus:     Category: GOVERNMENT SCHEMES Context:The Union Cabinet has approved phase two of the Vibrant Villages Programme (VVP) for the comprehensive development of strategic villages along all international land borders, with a total outlay of ₹6,839 crore. Decoding the context: While VVP-I was aimed at villages along the China border, the second phase of the programme will be implemented in select strategic villages in Arunachal Pradesh, Assam, Bihar, Gujarat, Jammu and Kashmir, Ladakh, Manipur, Meghalaya, Mizoram, Nagaland, Punjab, Rajasthan, Sikkim, Tripura, Uttarakhand, Uttar Pradesh, and West Bengal, until the financial year 2028-29. Learning Corner: The Vibrant Villages Programme (VVP) phase 1 was a centrally sponsored scheme launched by the Government of India in 2023 to develop border villages with sparse population, limited connectivity, and infrastructure. Vibrant Villages Programme -II (VVP-II) is a Central Sector Scheme (100% Centre funding), furthering its commitment for the vision of Viksit Bharat@2047 for ‘Safe, Secured & Vibrant land borders’. The Programme would help in the comprehensive development of the villages located in the blocks abutting international land borders (ILBs), other than the Northern border already covered under VVP-I. The objective of the programme is to create better living conditions and adequate livelihood opportunities to ensure prosperous and safe borders, control trans-border crime and assimilate the border population with the nation and inculcate them ‘as eyes and ears of the border guarding forces’, crucial for internal security. The interventions would be border-specific, state and village specific, based on Village Action Plans prepared in a collaborative approach. Key Components: Infrastructure Development: Roads, housing, water supply, electricity, internet, and mobile connectivity. Social Development: Healthcare, education, skill development, and livelihood opportunities. Tourism and Cultural Promotion: Promoting local culture, traditions, and eco-tourism. Security Dimension: Enhances eyes and ears on the border — discouraging migration and boosting strategic presence. Convergence Model: Coordination among multiple central and state schemes like PMGSY, Jal Jeevan Mission, PMAY-G. Source : The Hindu PRESIDENT AND STATE BILLS Syllabus:        Category: POLITY Context: President Droupadi Murmu has withheld assent to Tamil Nadu’s Bill seeking exemption from the mandate of National Eligibility-cum-Entrance Test (NEET)-based admissions for undergraduate medical courses in government medical colleges. Decoding the context: The Tamil Nadu Admission to Undergraduate Medical Degree Courses Bill was passed unanimously in the Assembly in September 2021. After the Bill was returned by the Governor, an all-party meeting was held in February 2022. The Bill was then re-adopted in the Assembly. Learning Corner: When a Bill is passed by the Legislature of a State, it is presented to the Governor for assent. In certain cases, the Governor may reserve the Bill for the consideration of the President. Step-by-Step Legislative Process

Archives (PRELIMS & MAINS Focus) BREAKTHROUGH PRIZE 2025 Category: INTERNATIONAL Context: The 2025 Breakthrough Prize in Fundamental Physics was awarded to 13,508 physicists across four collaborative projects at CERN, the European particle physics laboratory near Geneva, Switzerland. Decoding the context: The award was announced on April 5th as part of the 11th annual Breakthrough Prizes. Six prizes worth $3 million each were announced in Life Sciences, Mathematics and Fundamental Physics. Learning Corner: The Breakthrough Prize is one of the most prestigious awards in science, often referred to as the “Oscars of Science”.  The awards were established in 2013 by Mark Zuckerberg and his wife Priscilla Chan, former Google chief Sergey Brin, genomics company 23&Me founder Anne Wojcicki, and tech investor couple Yuri and Julia Milner to recognize groundbreaking achievements in Life Sciences, Fundamental Physics, and Mathematics. Breakthrough Prize In Life Sciences – The award in this category was given to three groups of scientists: Weight-loss drugs : Five scientists — Daniel J. Drucker, Joel Habener, Jens Juul Holst, Lotte Bjerre Knudsen, and Svetlana Mojsov — were awarded a prize for discovering and characterizing the GLP-1 hormone, which led to the development of weight loss and diabetes drugs like Ozempic and Wegovy. Multiple Sclerosis treatment : Multiple Sclerosis is an unpredictable chronic disease caused by the immune system attacking the protective sheath that covers nerve fibres of the central nervous system. Alberto Ascherio and Stephen L. Hauser were awarded the Prize for identifying the role of the B-cells of the immune system in Multiple Sclerosis (MS) and devising treatments targeted at the same.  Gene-editing technologies : David R Liu was awarded the Prize for developing the base editing and prime editing technologies widely used to edit the DNA of living organisms. These are significant as they can edit the DNA without cutting its double helix, and rewrite entire stretches of defective DNA with a corrected version. Breakthrough Prize In Fundamental Physics The Breakthrough Prize in Fundamental Physics was awarded to four collaborations at the Large Hadron Collider (LHC) in CERN – ALICE, ATLAS, CMS and LHCb. The LHC is the world’s largest and most powerful particle accelerator, causing protons to accelerate and collide, thus helping scientists study the properties of matter. The four collaborations studied the Higgs boson. The Higgs boson, also known as the ‘God Particle’, is known to impart mass to every other particle. Source : Indian Express CAPTCHA Category: SCIENCE & TECHNOLOGY Context: In the ever-changing world of Internet technology, keeping users safe and verifying their identities is important. One of the most important security systems for this is CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) Decoding the context: CAPTCHA was introduced in the early 2000s when the internet was flooded with automated bots. Learning Corner: CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. It is a security mechanism used on websites to differentiate between human users and automated bots. The test is designed to be easy for humans to solve but difficult for machines. Purpose of CAPTCHA Prevent spam (e.g., in comments or registrations) Block brute-force attacks Protect online polls from manipulation Limit abuse of online services (like ticket booking) Types of CAPTCHA Text-based CAPTCHA – Distorted letters/numbers that users must type in. Image-based CAPTCHA – Users select images matching a given prompt (e.g., “select all images with traffic lights”). Audio CAPTCHA – For visually impaired users; users type spoken words or numbers. ReCAPTCHA – Developed by Google. Includes: Checkbox (“I’m not a robot”) Invisible CAPTCHA (analyzes user behavior without requiring input). How CAPTCHA Works It presents a challenge that is easy for humans but difficult for bots. Bots struggle with image recognition, distorted text, and behavioral analysis. Advanced CAPTCHAs use AI-based detection to analyze user interactions. Turing Test The Turing Test was proposed by British mathematician and computer scientist Alan Turing in 1950 as a way to assess a machine’s ability to exhibit intelligent behavior indistinguishable from that of a human. How It Works In the test, a human judge communicates with both a human and a machine (AI) via text-based conversation. If the judge cannot reliably determine which one is the machine, the AI is said to have passed the Turing Test, demonstrating human-like intelligence. While early computers struggled with this challenge, modern AI systems have made significant progress, creating more natural, human-like conversations. Connection Between Turing Test & CAPTCHA – CAPTCHA is actually a reverse Turing Test—instead of a human testing a machine, CAPTCHA is designed so that a machine tests whether the user is human. Source : The Hindu SHYAMJI KRISHNA VERMA Category: HISTORY Context: Recently, Prime Minister Shri Narendra Modi paid tributes to the great freedom fighter Shyamji Krishna Verma on his death anniversary. Decoding the context: Shyamji Krishna Verma is remembered as a pioneer of the Indian revolutionary movement in Europe. Learning Corner: Shyamji Krishna Varma was a prominent freedom fighter, lawyer, scholar, and nationalist revolutionary during the Indian independence movement. He was a pioneer of Indian nationalism in Europe. Key Facts & Contributions Born: 4 October 1857, Mandvi, Gujarat (Kutch region) Education: Studied Sanskrit and law; later went to Oxford University in England. Profession: Barrister; also appointed Diwan of a princely state in India for a short period. Major Contributions: India House (1905, London): Founded India House, a hostel and hub for Indian students and revolutionaries in London. India House  Became a center of nationalist and revolutionary activity abroad. The Indian Sociologist (1905): Started this monthly journal to promote nationalist ideas and expose British colonial rule. The British government banned its publication for spreading seditious content. Support to Revolutionaries: Mentored and supported Vinayak Damodar Savarkar, Lala Har Dayal, and Madam Cama. Advocated armed revolution against British rule. Exile: Faced persecution in Britain; moved to Paris and later Switzerland, continuing his work in exile. Died in Geneva, Switzerland in 1930. In 2003, his ashes were brought back to India by the Government of Gujarat and enshrined at Kranti Teerth, Mandvi (Kutch). Source :

Archives (PRELIMS & MAINS Focus) REPO RATE Category: ECONOMY Context: The Reserve Bank of India’s (RBI’s) six-member Monetary Policy Committee (MPC) on April 9th decided to cut the repo rate by 25 basis points to 6%. Decoding the context: The rate setting panel also changed the monetary policy stance from “neutral” to “accommodative”, signaling further reductions in the repo rate in the near future. Learning Corner: The repo rate is the interest rate at which a central bank (Reserve Bank of India  – RBI), lends money to commercial banks for a short period.  The term “repo” stands for repurchase agreement, which means that banks borrow funds from the RBI by selling securities (usually government bonds) with an agreement to repurchase them at a later date, typically overnight or within a few days. The repo rate essentially represents the cost of borrowing for these banks. When the RBI lowers the repo rate (like reducing it from 6.25% to 6% on April 9, 2025), it becomes cheaper for banks to borrow money. This typically encourages banks to lend more to businesses and individuals, boosting economic activity, increasing money supply, and potentially stimulating growth About Reverse Repo The reverse repo rate is the interest rate at which the RBI borrows money from commercial banks. It’s essentially the opposite of the repo rate. When banks deposit their excess funds with the RBI, they earn interest at the reverse repo rate. This rate is typically lower than the repo rate and helps the RBI absorb liquidity from the economy.  If the RBI wants to reduce the amount of money circulating (to control inflation, for example), it might increase the reverse repo rate, incentivizing banks to park more funds with it instead of lending them out. Source : Indian Express PANCHAYAT ADVANCEMENT INDEX (PAI) Category: POLITY Context: In a push for data driven governance, the Department of Panchayati Raj has come up with the first ever Panchayat Advancement Index (PAI).  Decoding the context: There are 2.5 lakh gram panchayats in the country. Out of these, data of around 2.16 lakh gram panchayats from 29 States have been assessed. Learning Corner: The Panchayat Advancement Index (PAI) is a comprehensive, multi-domain, and multi-sectoral tool introduced by the Ministry of Panchayati Raj in India to assess the holistic development, performance, and progress of Gram Panchayats across the country.  The PAI reflects India’s commitment to achieving the SDG 2030 Agenda through participatory, bottom-up development.  The first baseline report, released for FY 2022-23, analyzed data from 2,16,285 panchayats with validated inputs. Purpose of PAI : Measures the overall well-being and development status of local communities under a panchayat’s jurisdiction. Identifies development gaps and supports evidence-based planning and policy-making at the grassroots level. Encourages panchayats to adopt best practices and set local targets to enhance their performance. Indicators: Panchayat Advancement Index (PAI) is a composite Index & has been compiled based on 435 unique local Indicators (331 mandatory & 104 optional) consisting of 566 unique data points across 9 themes of LSDGs (Localization of Sustainable Development Goals) aligned with National Indicator Framework (NIF) of the Ministry of Statistics and Programme Implementation (MoSPI). Nine Themes of Localized SDGs: Poverty-Free and Enhanced Livelihoods Panchayat Healthy Panchayat Child-Friendly Panchayat Water-Sufficient Panchayat Clean and Green Panchayat Self-Sufficient Infrastructure in Panchayat Socially Just and Socially Secured Panchayat Panchayat with Good Governance Women-Friendly Panchayat Based on the PAI scores & thematic Scores achieved by different Gram Panchayats, these GPs are grouped into one of the five categories Achiever: 90+ score (none achieved this in 2022-23) Front Runner: 75 to <90 (e.g., 699 panchayats, 0.3%) Performer: 60 to <75 (e.g., 77,298 panchayats, 35.8%) Aspirant: 40 to <60 (e.g., 1,32,392 panchayats, 61.2%) Beginner: <40 (e.g., 5,896 panchayats, 2.7%) Source : The Hindu BEAR MARKET Category: ECONOMY Context: The S&P 500 —- a stock market index that tracks the performance of 500 of the largest publicly traded companies in the US — on Monday briefly entered bear market territory for the first time since 2022. Decoding the context: A bear market (or for that matter, all types of market decline) takes place when investors are more motivated to sell than to buy stocks. Learning Corner: A bear market refers to a condition in which a stock index declines by at least 20% from its most recent peak value. This designation lacks an official or standardized determination and serves primarily as an informal term to succinctly indicate a significant downturn in the stock index. A bear market is the opposite of a bull market, which refers to when a stock index has increased at least 20% from its recent low. Note that a bear market is different from a market correction which occurs when there is a decline of at least 10% or more. Why does a bear market occur? There could be a host of different reasons. These include a weak economy, the anticipation of an economic slowdown, or investor sentiment that the market is too hot and prices too high. Events that are not purely economic — such as wars, oil supply shocks, etc — can also spook investors, leading to a dip in the market. A bear market often precedes a recession — a slowdown in economic output and is usually defined as at least two consecutive quarters of decline in gross domestic product (GDP). However, this is not always the case. The Indian stock market has also experienced bear markets over the years. One of the worst bear markets occurred during the 2008 global financial crisis. Between September 8, 2008, and November 6, 2008, the Nifty 50 index had dropped over 35%. Source : Indian Express THAR DESERT Category: GEOGRAPHY Context: The Thar Desert in India saw a striking 38 per cent rise in greening annually over the last two decades, driven by a significant increase in monsoon rainfall and agricultural expansion, a new study showed. Decoding the context: In fact, Thar was the only desert in the world with the highest concurrent increase in population, precipitation and vegetation during the last few decades, scientists from IIT Gandhinagar