Topic 1: Notification of the 2026 Delimitation Commission & Women’s Reservation Rollout
Paper: GS-II (Polity, Constitution, Governance)
UPSC Relevance: ★★★★★ (Very High)
Why in News?
On October 3, 2026, the Union Government officially notified the constitution of the new Delimitation Commission to redraw Lok Sabha and State Assembly constituencies based on the recently published 2025-26 Census data. This marks the critical first step toward operationalizing the Nari Shakti Vandan Adhiniyam (106th Constitutional Amendment), which mandates 33% reservation for women in the Lok Sabha and State Legislative Assemblies.
Understanding the Delimitation and Reservation Nexus
Delimitation is the act of redrawing boundaries of Lok Sabha and State Assembly constituencies to represent changes in population. A freeze on delimitation was placed in 1976 (and extended in 2001 till 2026) to ensure states that successfully implemented family planning (mostly Southern states like Tamil Nadu and Kerala) were not penalized with reduced political representation. The operationalization of the Women’s Reservation Act was constitutionally tied to this first delimitation post-2026, making this notification a watershed moment in India’s democratic history.
Key Pillars of the 2026 Delimitation Mandate
| Dimension | Key Directives & Focus Areas |
| Constituency Reorganization | Redrawing electoral boundaries to ensure equal population representation per MP/MLA, integrating GIS mapping and digital census data for precision. |
| Women’s Quota Allocation | Establishing a rotational mechanism to reserve 33% of the newly delimited seats for women, including sub-quotas for SC/ST women. |
| Southern State Safeguards | Introducing formulaic weightage for demographic management to ensure states like Tamil Nadu do not lose aggregate Lok Sabha seats despite lower population growth. |
Strategic Significance
- Democratic Equity: Realizes a decades-long struggle for gender parity in supreme legislative bodies, drastically altering the patriarchal nature of Indian politics.
- Policy Prioritization: Increased female representation is empirically linked to higher investments in public health, education, and child welfare at the legislative level.
- Demographic Balancing: Addressing the North-South population divide through innovative seat-allocation formulas prevents a constitutional crisis and preserves federal trust.
Key Challenges
- Federal Friction: Southern states remain apprehensive about losing political heft to populous northern states (UP, Bihar) in the Lok Sabha despite proposed safeguards.
- Rotational Ambiguity: The exact mechanism of rotating women’s reserved seats every election cycle could disincentivize long-term constituency nurturing by incumbent MPs.
Way Forward
- Consensus-Building: The Centre must activate the Inter-State Council to build a bipartisan, federal consensus on the exact mathematical formula used to cap total seat variations.
- Capacity Building: Political parties must aggressively train and mentor female grassroots leaders from Panchayat levels to ensure the 33% quota is filled by empowered candidates, not proxies (Sarpanch Pati syndrome).
Prelims Value Addition
- Article 82: Readjustment of allocation of seats in the House of the People to the States after each census.
- Nari Shakti Vandan Adhiniyam: 106th Amendment Act, 2023, inserting Articles 330A, 332A, and 334A.
Mains Value Addition
- Key Quote: “True democratic representation is achieved only when the architects of our future—our women—hold an equal stake in the halls of policymaking.”
Topic 2: Tamil Nadu’s Global Advanced Manufacturing & Semiconductor Hub (Hosur Phase II)
Paper: GS-III (Indian Economy, Infrastructure) & TNPSC Group 1 (State Economy)
UPSC Relevance: ★★★★★ (Very High)
Why in News?
On October 3, 2026, the Chief Minister of Tamil Nadu inaugurated Phase II of the Hosur Tech City, operationalizing India’s first fully integrated Compound Semiconductor Wafer Fab and AI-hardware manufacturing park. Supported by the India Semiconductor Mission (ISM) and global tech giants, this facility positions Tamil Nadu as the premier hardware export hub in South Asia.
Understanding Tamil Nadu’s Manufacturing Pivot
While Tamil Nadu has traditionally been the “Detroit of India” due to its automobile manufacturing prowess, the transition to Electric Vehicles (EVs) and smart electronics required a massive pivot. The Hosur Tech City capitalizes on the state’s robust logistics, deep talent pool, and the strategic proximity to Bengaluru’s software ecosystem, creating a symbiotic hardware-software corridor.
Key Pillars of the Hosur Phase II Hub
| Sector | Key Initiatives & Agreements |
| Compound Semiconductors | Focuses on Silicon Carbide (SiC) and Gallium Nitride (GaN) chips, which are critical for EV powertrains, solar inverters, and 6G telecom infrastructure. |
| Green Manufacturing | The entire industrial park is mandated to run on 100% renewable energy, utilizing captive offshore wind and solar microgrids. |
| Industry-Academia Linkage | Creation of a ‘Semiconductor Centre of Excellence’ partnering with Anna University and IIT Madras for real-time curriculum updates and R&D. |
Strategic Significance
- Supply Chain Sovereignty: Reduces India’s dangerous reliance on Taiwan and China for critical electronic components, insulating domestic industries from geopolitical shocks.
- Employment Generation: Expected to create over 50,000 direct high-skill engineering jobs and 1.5 lakh indirect jobs in the MSME ancillary sector across the Krishnagiri-Dharmapuri belt.
- Export Competitiveness: Elevates India’s share in the global electronics value chain, contributing directly to the $1 Trillion digital economy target.
Key Challenges
- Resource Intensity: Semiconductor fabs are notoriously water and power-intensive. Ensuring uninterrupted, ultra-pure water supply in the drought-prone Hosur region is a severe logistical hurdle.
- Technology Obsolescence: The chip manufacturing lifecycle is incredibly fast; failing to continuously invest in R&D could render the current node technologies obsolete within five years.
Way Forward
- Circular Water Economy: Mandate state-of-the-art Zero Liquid Discharge (ZLD) systems and advanced wastewater recycling specific to wafer fabrication effluents.
- MSME Integration: The state government must provide targeted PLI (Production Linked Incentive) subsidies to local MSMEs to manufacture the specialized chemicals and gases required by the mega-fabs.
Prelims Value Addition
- India Semiconductor Mission (ISM): A specialized business division within the Digital India Corporation to build a vibrant semiconductor and display ecosystem.
- Silicon Carbide (SiC): A third-generation semiconductor material highly efficient for high-voltage applications like EVs.
Mains Value Addition
- Key Quote: “By fusing Bengaluru’s software supremacy with Tamil Nadu’s manufacturing grit, the Hosur corridor is writing the blueprint for India’s technological self-reliance.”
Topic 3: Fourth Phase of INDUS-X and India-US Defence Tech Transfer
Paper: GS-II (International Relations) & GS-III (Defence Technology)
UPSC Relevance: ★★★★☆ (High)
Why in News?
On October 3, 2026, the defense ministries of India and the United States concluded the fourth phase of the India-US Defence Acceleration Ecosystem (INDUS-X) in New Delhi. The summit finalized critical Intellectual Property (IP) transfer agreements for advanced jet engine components and joint development of Unmanned Maritime Systems (UMS) for Indo-Pacific deployment.
Understanding INDUS-X
Launched originally in 2023 under the Initiative on Critical and Emerging Technology (iCET), INDUS-X was designed to bypass traditional bureaucratic red tape in defense procurement. It connects Indian and US defense start-ups, venture capitalists, and academic institutions to co-produce advanced military technology, shifting the bilateral relationship from a “buyer-seller” dynamic to a “co-development” partnership.
Key Pillars of the 4th INDUS-X Summit
| Dimension | Key Products & Capabilities |
| Jet Engine IP Transfer | Finalization of 100% tech transfer for hot-engine section coatings and metallurgy for the GE-F414 engines powering India’s Tejas Mk2 fighters. |
| Unmanned Maritime Systems | Joint production of autonomous underwater vehicles (AUVs) for deep-sea mine countermeasures and submarine tracking in the Indian Ocean Region (IOR). |
| Space Domain Awareness | Integration of Indian start-ups into the US Space Force’s low-earth orbit debris tracking and satellite protection networks. |
Strategic Significance
- Countering Regional Hegemony: Equips the Indian Navy and Air Force with next-generation autonomous systems necessary to counter the expanding footprint of the PLA Navy in the IOR.
- Boosting Defence Exports: Co-produced technologies under INDUS-X can be exported to friendly third nations (e.g., ASEAN countries), boosting India’s indigenous defense manufacturing sector.
- Technological Leapfrogging: Direct access to advanced metallurgy and algorithms saves decades of indigenous R&D trial-and-error.
Key Challenges
- Export Control Laws: Despite the agreements, stringent US legislative frameworks like ITAR (International Traffic in Arms Regulations) continue to pose latent risks of sudden tech blockades.
- Interoperability vs. Autonomy: Deepening tech integration with the US military raises concerns about preserving India’s strategic autonomy and non-aligned operational capabilities.
Way Forward
- Legislative Waivers: India must continuously lobby the US Congress to secure blanket ITAR exemptions for technologies jointly developed under the INDUS-X framework.
- Private Capital Crowding: The Ministry of Defence should establish dedicated venture capital funds to support Indian defense MSMEs in scaling the prototypes developed during INDUS-X challenges.
Prelims Value Addition
- iCET: Initiative on Critical and Emerging Technology, spearheaded by the National Security Advisors of both nations.
- GE-F414: Afterburning turbofan engines that will power India’s indigenous LCA Tejas Mk2 and AMCA aircraft.
Mains Value Addition
- Key Quote: “INDUS-X proves that the India-US strategic partnership is no longer just about joint exercises; it is about forging the technological shield of the free Indo-Pacific.”
Topic 4: Full Nationwide Rollout of Retail Digital Rupee (e₹-R)
Paper: GS-III (Indian Economy, Digital Infrastructure, RBI Policies)
UPSC Relevance: ★★★★★ (Very High)
Why in News?
On October 3, 2026, the Reserve Bank of India (RBI) announced the full nationwide rollout of the Retail Central Bank Digital Currency (e₹-R), completely integrating it with the existing Unified Payments Interface (UPI) infrastructure. This allows citizens across all states to use digital fiat currency for everyday offline and online transactions without requiring an intermediary bank account.
Understanding the e₹-R Architecture
Unlike cryptocurrencies, which are highly volatile and decentralized, the e₹-R is a sovereign, programmable fiat currency issued directly by the RBI. Its integration with UPI means that a user’s e₹-R wallet can scan any existing UPI QR code. Crucially, the 2026 rollout features advanced “offline capabilities,” allowing transactions using Bluetooth or Near Field Communication (NFC) in deep rural areas with zero internet connectivity.
Key Pillars of the Nationwide Rollout
| Feature | Operational Benefit |
| UPI Interoperability | Eliminates the need for merchants to maintain separate digital currency QR codes; a single scan processes both bank money and CBDC. |
| Offline Transactions | Utilizes secure-element hardware in smartphones and feature phones to settle peer-to-peer token transfers without active internet. |
| Programmability | Government subsidies (DBT) can be issued as “purpose-bound” digital rupees (e.g., valid only for purchasing fertilizers or school books). |
Strategic Significance
- Financial Inclusion: Offline capabilities ensure that citizens in network-shadow areas (hill states, deep forests) are brought into the formal digital economy.
- Reduced Currency Management Costs: Drastically reduces the massive logistical, printing, and security costs associated with managing physical fiat paper currency.
- Targeted Welfare Delivery: Programmable currency eliminates subsidy leakages entirely, ensuring government funds are spent strictly on intended developmental outcomes.
Key Challenges
- Cybersecurity Risks: A centralized digital currency is a highly attractive target for state-sponsored cyber-attacks aiming to cripple a nation’s financial backbone.
- Disintermediation of Banks: If citizens move massive amounts of deposits directly into RBI CBDC wallets, commercial banks could face liquidity crunches, impairing their ability to disburse loans.
Way Forward
- Caps on Holdings: The RBI must strictly enforce maximum holding limits in individual e₹-R wallets to prevent bank runs and maintain commercial bank liquidity.
- Financial Literacy Drives: Robust grassroots awareness campaigns are essential to protect first-time digital currency users in rural areas from phishing and social engineering frauds.
Prelims Value Addition
- CBDC: Central Bank Digital Currency, a legal tender issued by a central bank in a digital form.
- Token-based vs. Account-based: e₹-R is token-based (bearer instrument), meaning whoever holds the tokens owns them, simulating physical cash.
Mains Value Addition
- Key Quote: “The full rollout of the Digital Rupee marks the final frontier of India’s DPI revolution, marrying the trust of fiat cash with the velocity of digital technology.”
Topic 5: ‘Tamil Nadu Climate Resilient Coastal Protection’ Project
Paper: GS-III (Environment, Disaster Management) & TNPSC Group 1
UPSC Relevance: ★★★★☆ (High)
Why in News?
On October 3, 2026, the Government of Tamil Nadu, in collaboration with the World Bank, officially launched the ₹3,000 crore ‘Climate Resilient Coastal Protection’ Project. Spanning the state’s 1,076 km coastline from Tiruvallur to Kanyakumari, the initiative focuses on hybrid engineering and ecosystem-based adaptation to combat accelerating sea-level rise and the increasing frequency of super-cyclones.
Understanding the Coastal Crisis
Tamil Nadu’s coastline is highly vulnerable to climate change. Rampant coastal erosion, driven by rising sea levels and unscientific hard-armor structures (like concrete seawalls), has degraded critical ecosystems like the Gulf of Mannar and Pulicat Lake. Furthermore, saltwater intrusion is devastating coastal agriculture. The new project shifts from traditional “hard” engineering to “nature-based solutions.”
Key Pillars of the Coastal Project
| Intervention Strategy | Key Initiatives |
| Bio-Shield Development | Massive afforestation of mangrove forests, seagrass beds, and palmyra (palm) trees along estuaries and critically eroding zones. |
| Hybrid Engineering | Combining traditional groynes with artificial offshore coral reefs designed to naturally break wave energy before it hits the shore. |
| Early Warning Integration | Deployment of oceanographic buoys linked to local panchayat-level automated siren systems for real-time tsunami and cyclone alerts. |
Strategic Significance
- Livelihood Protection: Rehabilitating seagrass and coral ecosystems directly boosts near-shore marine biodiversity, securing the livelihoods of traditional fishing communities.
- Carbon Sequestration: Mangroves and coastal wetlands (Blue Carbon ecosystems) sequester carbon at rates up to 10 times higher than terrestrial forests, aiding India’s Net-Zero 2070 goals.
- Disaster Mitigation: Bio-shields act as the most effective and cost-efficient shock absorbers against storm surges, vastly outperforming rigid concrete sea walls that eventually collapse.
Key Challenges
- Land-Use Conflicts: Expanding coastal bio-shields often conflicts with the aggressive expansion of coastal aquaculture (shrimp farming) and port development projects.
- Maintenance of Hybrid Structures: Artificial reefs and submerged breakwaters require continuous monitoring to ensure they do not alter local sediment transport and cause erosion further down the coast.
Way Forward
- Community Co-management: Coastal panchayats must be given legal ownership and management rights over the new mangrove forests to ensure strict local protection against timber smuggling.
- Integrated Coastal Zone Management (ICZM): The state must strictly enforce CRZ (Coastal Regulation Zone) norms, strictly prohibiting any new permanent commercial constructions within 500 meters of the high-tide line.
Prelims Value Addition
- Blue Carbon: The carbon captured by the world’s ocean and coastal ecosystems, mostly by mangroves, salt marshes, and seagrasses.
- Gulf of Mannar: India’s first Marine Biosphere Reserve, renowned for its coral reefs and dugong (sea cow) populations.
Mains Value Addition
- Key Quote: “To defend our shores from a changing climate, we must build with nature, not against it. Mangroves are our strongest walls.”
Topic 6: Expansion of the India-Middle East-Europe Economic Corridor (IMEC)
Paper: GS-II (International Relations, Regional Groupings)
UPSC Relevance: ★★★★★ (Very High)
Why in News?
On October 3, 2026, India signed critical port terminal and rail operationalization agreements with the UAE and Greece, officially initiating the first phase of cargo transit under the India-Middle East-Europe Economic Corridor (IMEC). This move comes as a strategic bypass to the persistent instability and Houthi blockades in the Red Sea, which have choked the Suez Canal route.
Understanding IMEC’s Strategic Geography
First conceptualized at the G20 Summit in 2023, IMEC is a multi-modal transport network. The Eastern Corridor connects Indian ports (Mundra, JNPT) to the Gulf (Dubai, Fujairah) via sea. The Northern Corridor then utilizes a trans-Arabian railway network across the UAE, Saudi Arabia, and Jordan, reaching the Israeli port of Haifa, before crossing the Mediterranean Sea to Greece (Piraeus port) and mainland Europe.
Key Pillars of the 2026 Expansion Agreements
| Sector | Key Initiatives & Focus Areas |
| Customs Harmonization | Implementation of a unified digital tracking and digital customs clearance grid across India, UAE, and Greece to ensure frictionless transit. |
| Green Shipping Lines | Mandating that all maritime cargo moving between the IMEC nodal ports utilize green ammonia or methanol-powered vessels. |
| Railway Modernization | Joint Indian and UAE sovereign wealth fund investments to upgrade the critical rail bottleneck between Saudi Arabia and the Mediterranean coast. |
Strategic Significance
- Supply Chain Resilience: Bypassing the volatile Red Sea/Suez Canal chokepoint reduces transit time to Europe by 40% and drastically cuts maritime insurance premiums.
- Countering BRI: IMEC acts as a transparent, commercially viable, and ecologically sustainable democratic alternative to China’s debt-trap-laden Belt and Road Initiative (BRI).
- Geoeconomic Integration: Deepens India’s strategic footprint in the Middle East, transforming the region from a mere energy supplier into a core logistical transit hub for Indian exports.
Key Challenges
- Geopolitical Volatility: The ongoing Israel-Palestine tensions and broader Middle Eastern hostilities pose a severe physical threat to the overland rail network culminating in Haifa.
- Missing Links: The railway segment traversing the harsh terrain of Jordan and Saudi Arabia requires massive capital expenditure and is still largely incomplete.
Way Forward
- Minilateral Security Pacts: India must push for a joint maritime and overland security framework involving the UAE, Saudi Arabia, and the US to protect IMEC infrastructure from proxy militia attacks.
- Standardization of Gauges: Rapid harmonization of railway tracks and locomotive standards across the Middle Eastern transit states is required to prevent cargo transfer delays.
Prelims Value Addition
- IMEC Members: India, USA, UAE, Saudi Arabia, France, Germany, Italy, and the European Union.
- Haifa Port: A major deep-water port in Israel, strategically acquired by a consortium led by India’s Adani Group.
Mains Value Addition
- Key Quote: “IMEC is not just an alternative trade route; it is the physical manifestation of a multipolar world seeking democratic and resilient supply chains.”
Topic 7: Successful Pre-Induction Test of Agni-VI ICBM with MIRV
Paper: GS-III (Science & Technology, Space & Defence)
UPSC Relevance: ★★★★☆ (High)
Why in News?
On October 3, 2026, the Defence Research and Development Organisation (DRDO) successfully conducted the final pre-induction test of the Agni-VI Intercontinental Ballistic Missile (ICBM) from APJ Abdul Kalam Island, Odisha. The test successfully validated the deployment of advanced Multiple Independently targetable Reentry Vehicle (MIRV) technology, propelling India into an elite group of nations possessing this capability.
Understanding MIRV and Agni-VI
Traditional ballistic missiles carry a single warhead directed at a single target. MIRV technology allows a single missile to carry multiple nuclear or conventional warheads, each capable of being programmed to hit different targets hundreds of kilometers apart upon atmospheric re-entry. The Agni-VI, with an estimated range exceeding 8,000 km, is a three-stage solid-fuel missile capable of launching from road-mobile launchers or strategic submarines.
Key Pillars of the Missile Capability
| Technology | Strategic Utility |
| MIRV Deployment | Defeats adversary ballistic missile defense (BMD) systems by deploying multiple warheads and decoys simultaneously, overwhelming radar tracking. |
| Ring Laser Gyro-based Navigation | High-precision indigenous inertial navigation system ensures pinpoint strike accuracy (minimal Circular Error Probability) despite electronic jamming. |
| Submarine Launch Capability (K-6 variant) | Ensures maximum survivability of the nuclear arsenal, forming the most lethal and reliable leg of India’s nuclear triad. |
Strategic Significance
- Credible Minimum Deterrence: As China aggressively expands its nuclear arsenal and deploys advanced missile shields, Agni-VI ensures India’s second-strike capability remains highly credible and devastating.
- Strategic Parity: Brings all of mainland China, as well as potential maritime threats in the deep Indo-Pacific and beyond, comfortably within India’s strategic striking range.
- Technological Maturation: Proves the total indigenization of critical aerospace alloys, solid-propellant chemistry, and high-heat re-entry shielding.
Key Challenges
- Escalation Dynamics: The deployment of MIRVs complicates arms control. Adversaries may misinterpret a conventional launch as a massive nuclear strike, lowering the threshold for nuclear war.
- Payload vs. Range: Adding multiple heavy warheads significantly increases the payload, which inversely affects the maximum operational range of the ICBM.
Way Forward
- Diplomatic Reassurance: India must leverage international forums to reiterate its strict adherence to the “No First Use” (NFU) nuclear doctrine to prevent regional arms races.
- Focus on Submarine Fleet: To maximize the deterrent value of the Agni-VI technology, India must accelerate the commissioning of the S5-class nuclear-powered ballistic missile submarines (SSBNs).
Prelims Value Addition
- MIRV: Multiple Independently targetable Reentry Vehicle.
- Nuclear Triad: The capability to launch nuclear weapons from land, air, and sea (submarines).
- APJ Abdul Kalam Island: Formerly Wheeler Island, India’s premier missile testing facility off the coast of Odisha.
Mains Value Addition
- Key Quote: “Deterrence is not merely about possessing power, but demonstrating the precise, undeniable capability to deliver it anywhere, at any time.”
Topic 8: Proposal for a Permanent Inter-State River Water Tribunal
Paper: GS-II (Polity, Inter-State Relations, Cooperative Federalism)
UPSC Relevance: ★★★★★ (Very High)
Why in News?
On October 3, 2026, the Ministry of Jal Shakti tabled a comprehensive draft bill to amend the Inter-State River Water Disputes Act, 1956. The bill proposes dissolving all existing ad-hoc water tribunals (such as the Cauvery and Krishna tribunals) and establishing a single, permanent National Inter-State River Water Disputes Tribunal with multiple benches. This coincides with Tamil Nadu’s fresh push for central funding to modernize the Cauvery delta irrigation network.
Understanding the Institutional Paralysis
Under Article 262, Parliament has the power to adjudicate inter-state river disputes. However, the current model of creating separate, ad-hoc tribunals for every dispute has proven highly inefficient. Tribunals take decades to deliver awards (e.g., the Cauvery tribunal took 17 years), suffer from vacancies, and lack institutional memory. A permanent tribunal seeks to streamline jurisprudence and enforce strict timelines.
Key Pillars of the Proposed Framework
| Component | Function / Feature |
| Single Permanent Tribunal | One central tribunal headquartered in New Delhi with circuit benches to handle all river disputes concurrently, ensuring uniform legal precedents. |
| Dispute Resolution Committee (DRC) | A mandatory pre-litigation mechanism comprising technocrats to attempt negotiated settlements before cases are formally admitted to the tribunal. |
| Strict Timelines | Mandates that the DRC submit its report within one year, and the Tribunal deliver its final binding verdict within three years (extendable by a maximum of two years). |
| National Hydrological Data Grid | An open-source, real-time data repository maintained by the Centre to prevent states from presenting conflicting hydrological data. |
Strategic Significance
- Expedited Justice: Replaces decades of political grandstanding and litigation with rapid, technocratic resolutions, allowing states to proceed with stalled irrigation and dam projects.
- Depoliticization of Water: The mandatory DRC stage ensures that hydrology experts, rather than politicians, form the first line of conflict resolution based on empirical data.
- Data Parity: A central data grid eliminates the primary cause of disputes—disagreement over how much water actually flows in the river during deficit monsoon years.
Key Challenges
- State Apprehensions: Lower riparian states like Tamil Nadu often fear that a single tribunal might be susceptible to overriding central political influence, compromising their historical water rights.
- Enforcement Deficit: Even with a permanent tribunal, if a state refuses to release water during a distress year (a recurring issue in the Cauvery basin), the Centre often lacks the political will to deploy central forces to enforce the award.
Way Forward
- Independent Data Gathering: The National Hydrological Data Grid must be managed by an autonomous constitutional body, completely independent of the executive, to build trust among states.
- Micro-Irrigation Transition: Regardless of tribunal awards, states like Tamil Nadu and Karnataka must heavily subsidize micro-irrigation (drip/sprinkler) and shift away from water-guzzling paddy/sugarcane cultivation in dispute-prone basins.
Prelims Value Addition
- Article 262: Provides for the adjudication of disputes relating to waters of inter-state rivers or river valleys.
- Entry 17 vs Entry 56: Water is a State subject (Entry 17, State List), but the Centre can regulate inter-state rivers (Entry 56, Union List).
Mains Value Addition
- Key Quote: “Institutionalizing the adjudication of water disputes is necessary, but the ultimate solution lies not in fighting over a shrinking pie, but in optimizing every drop through cooperative agricultural reform.”
