{GS1 – Geo} Water Security in Rapidly Drying India **
- Context (TH): Indian cities are facing a dual crisis of strict water rationing and relentless heatwaves exceeding 42°C, following a 40% rainfall deficit that made June 2026 the country’s fifth-driest since 1901.
Scale of India’s Water Insecurity
- Supply Contraction: India’s per-capita water availability fell from 1,816 m³ in 2001 to 1,400 m³ in 2025, approaching the 1,000 m³ absolute scarcity threshold by 2050.
- Extraction Stress: NITI Aayog estimates that 600 million Indians face high-to-extreme water stress. 21 major cities are projected to reach “Day Zero” due to groundwater depletion.
- Basin Depletion: 11 of India’s 15 major river basins are water-stressed (below 1,700 m³ per person per year), with the Krishna, Cauvery, Mahi, and Tapi basins below the scarcity threshold of 1,000 m³.
- Aquifer Overdraft: Central Ground Water Board’s 2025 assessment classifies 730 of 6,762 groundwater blocks as over-exploited, concentrated primarily in Punjab, Haryana, and Rajasthan.
- Contamination Mortality: India ranks 120th out of 122 countries in the Global Water Quality Index, with 70% of surface water pollution causing 200,000 deaths annually.
- Fiscal Exposure: NITI Aayog projects that India’s water demand will be twice the available supply by 2030, implying a potential GDP loss of up to 6%.
Factors of Rising Water Stress in India
- Demographic Asymmetry: India holds only 4% of global freshwater but supports 18% of the world’s population, creating structural scarcity independent of annual rainfall variations.
- Subsidy Distortion: Unlimited pumping, incentivised by unmetered agricultural electricity, expanded the national borewell network from 1 million to nearly 20 million over five decades.
- Volumetric Depletion: India’s ~247 BCM annual groundwater extraction, accounting for 25% of global extraction, exceeds aquifer recharge in 11% of assessed blocks (CGWB 2025).
- Contamination Spillover: Treating only ~20,235 MLD of India’s 72,368 MLD annual sewage leaves 70% of surface water contaminated with untreated effluent.
- Recharge Disruption: A 3-fold increase in extreme rainfall events (≥150 mm/day) in central India during 1950-2015 shifts monsoon precipitation towards destructive surface runoff rather than aquifer recharge.
- Digital Demand: India’s data centre water consumption is projected to rise from ~150 billion litres to ~358 billion litres by 2030, intensifying urban water competition.
Government Schemes for Water Security
- Last-Mile Access: Jal Jeevan Mission provides functional household tap connections to over 15.82 crore rural households (81.71% coverage), ensuring safe domestic water access.
- Irrigation Efficiency: Pradhan Mantri Krishi Sinchayee Yojana subsidises drip and sprinkler installations across ~11 million hectares to reduce agricultural groundwater extraction.
- Community Budgeting: Atal Bhujal Yojana funds participatory water security budgets across 8,203 water-stressed gram panchayats to arrest critical aquifer depletion.
- Aquifer Recharge: Jal Sanchay Jan Bhagidari constructed over 1.5 crore community-led artificial recharge structures to harvest monsoon runoff and restore depleted aquifers.
- Rainwater Harvesting: Jal Shakti Abhiyan converges district-level watershed development projects to systematically harvest surface runoff during the monsoon season.
- Crop Diversification: Sahi Fasal incentivises farmers in severely depleted agricultural blocks to switch from water-intensive paddy to low-water horticulture and millets.
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Read More> Water Crisis in India | India Needs an Efficient Water Governance
{GS2 – IR} India-Israel Bilateral Investment Agreement (BIA) **
- Context (IE | DC): The India-Israel Bilateral Investment Agreement (BIA), signed in September 2025, came into force on 4 July 2026. The BIA replaces the 1996 India-Israel investment treaty.
- Israel is the first OECD member to sign an investment pact under India’s revised Model Bilateral Investment Treaty (BIT) framework.
- India’s revised Model BIT, announced in the 2025-26 Union Budget, aims to revamp the restrictive 2015 version to boost FDI and investor confidence. It shortens mandatory local litigation to 3 years, extends asset protections to portfolio investments, and excludes taxation disputes and the Most-Favoured-Nation (MFN) clause to prevent treaty shopping.
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Key Highlights of the BIA
- Investment Coverage: Includes qualifying shares, stocks, equity holdings, bonds, and corporate debt alongside traditional Foreign Direct Investment (FDI).
- Arbitration Access: Investors may initiate international arbitration after exhausting domestic remedies for three years, instead of five years under India’s Model BIT 2015.
- National Treatment: Grants equal treatment to domestic and foreign investors, while excluding the land and real estate sectors from this protection.
- Regulatory Rights: Preserves host-state authority over taxation, public health, national security, environmental protection, and other legitimate public-policy objectives.
- Treaty Shopping: Bars third-party funding in investor-state arbitration and denies treaty benefits to shell companies lacking substantial business operations.
- Sunset Clause: The agreement remains valid for 10 years and protects covered investments for another 10 years after termination.
India-Israel Relations
- India recognised Israel in 1950, established full diplomatic relations in 1992, elevated to a Strategic Partnership in 2017, and to ‘Special Strategic Partnership for Peace, Innovation and Prosperity‘ in 2026.
- Trade: India is Israel’s 2nd largest trading partner in Asia, with merchandise trade reaching USD 3.62 billion in FY 2024-25.
- Trade Basket: India exports precious stones, petroleum products, and chemicals, and imports diamonds, machinery, fertilisers, and defence equipment.
- Defence: Israel is a top defence supplier, collaborating on UAVs, AWACS, and missile systems like Barak-8, with India as its biggest arms buyer.
- Connectivity: Economic integration expanded via the India–Middle East–Europe Economic Corridor, supported by Adani Ports’ 2023 acquisition of Haifa Port.
- Water Cooperation: Israel provides technical expertise to India on desalination, wastewater reuse, conservation, and integrated water management.
- Minilateral Framework: India and Israel cooperate through I2U2 (India, Israel, UAE, USA) on food security, clean energy, and connectivity.
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Read More > India-Israel Relations
{GS2 – Polity} Proposed Governance Model for Ladakh
- Context (TH): Ministry of Home Affairs and Ladakh civil society groups finalised a unique self-governance model for the Union Territory under Article 371-like safeguards.
- Rationale: Full statehood was deferred due to Ladakh’s limited internal revenue base; Sixth Schedule demand was replaced by Article 371-like provisions for land and cultural protection.
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Key Features:
- An elected UT-level body will replace Ladakh’s exclusively bureaucratic governance structure. The elected body will have executive, financial, and legislative powers.
- The elected executive will have direct authority to supervise and review the performance appraisals of civil servants within its jurisdiction.
- Article 371-like protections will safeguard Ladakh’s tribal culture, land rights, & regional employment.
Article 371
- Articles 371 and 371A to 371J in Part XXI provide special provisions for certain States to address regional aspirations, tribal cultures, customary laws, and economic backwardness.
- Unlike the Sixth Schedule, which creates Autonomous District Councils, Article 371 provisions operate through the existing State legislature and executive.
- They empower the President or Governors to set up development boards, regulate local resources, and prevent the Parliament from overriding local customary laws.
- Covers 12 States — Maharashtra, Gujarat, Nagaland, Assam, Manipur, Andhra Pradesh, Telangana, Sikkim, Mizoram, Arunachal Pradesh, Goa, and Karnataka.
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Read More > Ladakh Protests
{GS3 – Agri} India’s Fisheries Sector **
- Context (TH): 91.1% of 135 fish stocks evaluated in different regions during 2022 found to be sustainable.
India’s Fisheries Sector
- India ranks as world’s 2nd largest fish producing nation accounting for 8% of global output.
- Fisheries account for nearly 7.43% Agricultural Gross Value Added (GVA), highest among the agriculture and allied sectors.
- Total fish output reflected a 106% increase doubling from 95.79 lakh tonnes in FY 2013–14 to 197.75 lakh tonnes in FY 2024–25.
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Benefits of Fisheries Sector in India
- Vital Pillar of Indian Economy: Contributing to food security, employment generation, and livelihoods for millions of fishers, particularly in coastal and rural regions.
- Huge Potential: India has a coastline of 11,098 km, an Exclusive Economic Zone (EEZ) of 1.6 million km², with more than 1 billion people living in coastal areas.
- Women Empowerment: Women represent about 32% of people employed in the sector mainly in post-harvest sector.
- Share in Export: Seafood exports expanded significantly, reaching ₹62,408 crore in FY 2024–25 dominated by frozen shrimp with United States and China serving as key markets,
- Deep-Sea and offshore fishing sector: It had an estimated resource potential of around 7.16 million tonnes (MT) in 2018, including both conventional (74%) and non-conventional resources (26%).
Key Challenges Associated with the Sector
- Outdated Assessment Methodology: Central Marine Fisheries Research Institute (CMFRI) calculates availability of fish stocks in India’s Exclusive Economic Zone (EEZ) based on fishermen catch and not on overall stock assessment.
- Altering Marine Ecology: Construction of dams in major rivers, destruction of mangroves (where fishes breed), etc. causing reduced catches.
- Uncontrolled expansion of Mechanised Trawling: Oversized Fleet of mechanised trawlers ploughs inshore seabed in a continuous fashion causing decline of all animal and plant life.
- Poorly Enforced Regulations: Regulations prohibiting mechanised boats operate within 5 nautical miles and lacks forcefulness further coastal States lack sufficient staff to patrol the inshore waters.
Initiatives to Promote Fisheries in India
- Pradhan Mantri Matsya Sampada Yojana (PMMSY): Prioritises technology-driven aquaculture systems, promotes high-density, water-efficient models like RAS and Bio-floc technology.
- Recirculatory Aquaculture System: Modern fish-farming method in which water is filtered and reused.
- Bio-floc technology: It utilizes beneficial microbes to convert organic waste into feed, improving water quality and fish health.
- Pradhan Mantri Matsya Kisan Samridhi Sah-Yojana (PM-MKSSY): Central Sector sub-scheme implemented under umbrella of the PMMSY for the period from 2023–24 to 2026–27.
- Kisan Credit Card for Fisheries: Government has raised the lending limit under the scheme for fisheries and allied activities from Rs 2 lakh to Rs 5 lakh.
- Fisheries and Aquaculture Infrastructure Development Fund (FIDF): It offers a credit guarantee cover of up to Rs 12.50 crore and provides an interest subvention of up to 3% per year.
- Others: Rules and Guidelines for Sustainable Harnessing of Fisheries in the EEZ and High Seas (2025), role of Marine Products Export Development Authority (MPEDA) in promoting exports.
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Read More> Fisheries Sector in India
{Prelims – Envi} Nameri Tiger Reserve
- Context (TT): Tiger population in Assam’s Nameri Tiger Reserve rose fourfold, from 3 tigers in 2022 to 12 by the end of 2025.
- Nameri Tiger Reserve lies in northern Sonitpur district, Assam, along the Eastern Himalayan foothills. It is Assam’s second tiger reserve, after Manas, and is located within the Sonitpur Elephant Reserve.
- The glacier-fed Jia Bhoroli, a Brahmaputra tributary, defines the southern boundary of the core area. It is a habitat for the endangered Golden Mahseer.
- Vegetation: Tropical semi-evergreen forests, cane brakes, and riparian grasslands dominate the landscape, including Hollock, Nahor, and Simul.
- Faunal Diversity: Bengal tiger, Asian elephant, clouded leopard, gaur, and dhole; it is one of the last breeding sites of the endangered White-winged Wood Duck. The Potasali pre-release facility in Nameri trains captive-bred pygmy hogs for wild reintroduction.
- Its northern boundary connects the reserve with Arunachal Pradesh’s Pakke Tiger Reserve, facilitating transboundary megafauna movement.
{Prelims – Envi} Oldest Accurately Dated Banyan Tree
- Context (HT): A banyan tree in Bihar’s Munger district has been identified as oldest accurately dated using radiocarbon dating.
- Radiocarbon dating, or carbon-14 dating (based on decay of carbon-14 isotope) is a scientific method that can accurately determine the age of organic materials as old as 60,000 years.
- It estimates the age of once-living organisms by measuring the amount of remaining carbon-14 in their tissues.
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About the Research
- Limitations of Old Technique: Unlike many temperate trees, tropical broadleaf species like banyans lack distinct annual growth rings, making conventional dendrochronological methods ineffective causing researchers to rely on folklore, local narratives or historical documentation.
- New Dating Method: Researchers extracted alpha cellulose from wood samples near the pith and an ancient branch and used Accelerator Mass Spectrometry radiocarbon dating, calibrated with IntCal20 and OxCal.
About Banyan Tree (Ficus benghalensis)
- Evergreen tree with a wide, spreading crown, can grow 20 – 30 metres or more tall. Usually begins as an epiphyte, growing in the branch of another tree; as it grows older it sends down aerial roots.
- Aerial roots grow above the ground from a plant’s stem or branches, absorbing moisture from the air instead of the soil.
- In case of Banyan tree, when they reach the ground, they thicken into supportive trunks, enabling it to spread widely and form vast networks.
- Range: East Asia – Indian subcontinent.
- Habitat: Monsoon and rain forests; Evergreen to deciduous lowland forest.
- Conditions for Growth:
- Elevation: 500 – 1,200 metres.
- Annual daytime temperatures: Between 26 – 36°C.
- Mean annual rainfall: Between 1,000 – 2,500mm.
- Soil: Fertile, light to medium soil; pH (5.5-7).
- Its bark is tonic and diuretic, Milky Latex is used against pains and fever, Fruit is tonic and has a cooling effect.
- It is considered sacred by Hindus, recognised as National Tree of India
{Prelims – Governance} e-Jagriti
- Context (PIB): Prime Minister shared an article on role of e-Jagriti (e-Justice and Grievance Redressal through Information Technology and Innovation) in addressing consumer complaint.
e-Jagriti
- e-Jagriti is the Department of Consumer Affairs’ integrated digital consumer grievance redressal platform, launched in January 2025, that provides paperless, AI-enabled, multilingual, and end-to-end online dispute resolution by integrating legacy consumer complaint systems.
- Key Components: Integrates legacy systems like OCMS, e-Daakhil, NCDRC CMS & CONFONET into a single, seamless interface.
- Key Features: Offers e-filing, virtual hearings, real-time case tracking, secure digital payments (Bharat Kosh/PayGov), and role-based access.
- Since launch, it has handled 2.29 lakh+ cases with a 90.75% disposal rate and received the Silver Award under Category I-Government Process Re-engineering by Use of Technology for Digital Transformation at the National Awards for e-Governance 2026.
{Prelims – PIN World} Peru
- Context (PIB): Keiko Fujimori was officially declared the president of Peru.
- Peru (capital: Lima) is a megadiverse country on the western coast of South America. It shares borders with Ecuador and Colombia to the north, Brazil to the east, Bolivia to the south-east, Chile to the south, and the Pacific Ocean to the west.
- The cold Humboldt Current creates an upwelling zone along the coast, sustaining major marine fisheries while keeping the littoral zone arid.
- Nevado Huascarán, at 6,768 m, is Peru’s highest peak and the tallest mountain in the tropics. Lake Titicaca, on the Peru-Bolivia border at 3,812 m, is the world’s highest navigable lake.
- The Amazon River originates in the Peruvian Andes, fed by glacial melt from Nevado Mismi, before flowing east across Brazil into the Atlantic.
{Prelims – S&T} SOLVE Ground Test for Gaganyaan
- Context (TH): ISRO successfully conducted the first ground test of the solid motor for the Sub-Orbital Launch Vehicle for Experiments (SOLVE) at Satish Dhawan Space Centre, Sriharikota.
- SOLVE is a specialised, cost-effective sub-orbital test vehicle developed by ISRO to validate the Gaganyaan mission’s crew recovery systems.
- The vehicle will loft the Crew Module to 10–17 km, separate it and deploy 10 parachutes to reduce the module’s velocity before splashdown in the sea.
- It uses a modified solid propulsion motor directly derived from the proven strap-on boosters of the Polar Satellite Launch Vehicle (PSLV). It includes a slow-burn propellant, a straight nozzle, and Secondary Injection Thrust Vector Control (SITVC) to meet the required trajectories.
- The Gaganyaan Mission is India’s first human spaceflight programme, led by ISRO, aiming to send a crew to a 400 km low Earth orbit for three days. It seeks to demonstrate indigenous capability by safely returning the crew through a controlled splashdown in Indian waters.
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{Prelims – S&T} Large Hadron Collider
- Context (TH): The Large Hadron Collider (LHC) entered Long Shutdown 3 (LS3) in 2026, beginning a four-year, 1.2-billion CHF upgrade to replace 1.2 km of accelerator components.
- It will restart in 2030 as the High-Luminosity LHC (HL-LHC), targeting 10 times the current particle collision rate and 380 million Higgs bosons, compared with 55 million produced across the LHC’s entire run.
- LHC is the world’s largest and highest-energy particle accelerator, operated by the European Organisation for Nuclear Research (CERN) in a 27-km tunnel 100 metres underground on the Franco-Swiss border.
- Objective: Recreate quark-gluon plasma, search for dark matter, test extra dimensions, and probe matter-antimatter asymmetry.
- Inside the LHC, twin proton beams travel in opposite directions at 99.9999991% the speed of light, recreating post-Big Bang conditions at four main detectors.
- Superfluid helium cools the LHC’s superconducting magnets to 1.9 K, colder than outer space, while the 1,232 dipole magnets generate a magnetic field 100,000 times stronger than Earth’s.
- Achievements: ATLAS and CMS confirmed the Higgs boson in 2012, validating the mechanism by which elementary particles acquire mass. The LHC’s precision measurements have validated Standard Model predictions to sub-per cent accuracy.
- Higgs Boson: The only known fundamental particle with a quantum spin of exactly zero, no electric charge, and no colour charge. It has a lifetime of roughly 10⁻²² seconds, making it one of the shortest-lived particles known. First theorised in 1964, its existence was confirmed in 2012 at the LHC.
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Read More> Higgs Boson | Large Hadron Collider (LHC) Discovers New Particle
{Prelims – Misc} One-Liner
- S&T – CG Semi’s OSAT Facility (PIB): PM Modi inaugurated CG Semi’s Outsourced Semiconductor Assembly and Test facility in Sanand, Gujarat, India’s third major semiconductor packaging unit under the India Semiconductor Mission (ISM). It’s a joint venture with Japanese and Thai partners targeting 500 crore chips yearly and over 5,000 jobs in five years.