GyanGramGet the app
Daily Current Affairs for UPSC

21 June 2026

Complete news analysis

01 · GS-I: Physical Geography, Climatology & Solar Geometry

Summer Solstice Mechanics: Tropic of Cancer Insolation, Inter-Tropical Convergence Zone (ITCZ) and Monsoon Trough

NEWS PEG
  • The Northern Hemisphere observed the Summer Solstice on 21 June, the longest day of the year in the northern hemisphere, with the Sun positioned directly overhead at solar noon along the Tropic of Cancer (23.5° N).
  • Climatologists analyzed the intense differential thermal heating of the Tibetan Plateau and the Indian subcontinent, which creates an intense surface thermal low-pressure cell that draws the moisture-laden southwest monsoon winds across the equator.
  • The northward migration of the Inter-Tropical Convergence Zone (ITCZ) toward the Indo-Gangetic plains forms the monsoon trough, dictating the intensity and spatial progression of the southwest monsoon.
STATIC FOUNDATION
  • Summer Solstice (June 21): Northern hemisphere is tilted at its maximum angle (23.5°) toward the Sun; all regions north of the Arctic Circle experience 24 hours of daylight ('Midnight Sun').
  • Tropic of Cancer in India: Passes through 8 Indian States: Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram.
  • Thermal Role of the Tibetan Plateau (Flohn's Theory): The high-altitude plateau acts as an elevated heat source, heating the middle troposphere and generating a strong clockwise upper-air anticyclone, which powers the Tropical Easterly Jet (TEJ) stream that drives the Indian monsoon.
  • Coriolis Force & Monsoon Reversal: Southeast trade winds crossing the equator (0°) are deflected to the right by Coriolis force, becoming the South-West Monsoon.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Tibetan Plateau as the Thermal Engine: Atmospheric Jet Stream Dynamics — Understanding how heating of the Tibetan landmass powers the Tropical Easterly Jet stream and southwest monsoon.
  • Seasonal ITCZ Shifts & Agrarian Sowing: Predicting Monsoon Pauses — Tracking synoptic oscillations in the monsoon trough to guide contingency crop advisories.
  • Solar Radiation & Rooftop Energy Potential: Peak Summer Solar Influx — Maximizing solar generation during high-insolation solstice months to meet peak power cooling demands.
02 · GS-II: Indian Federalism, Zonal Councils & Interstate Coordination

Zonal Councils and Cooperative Federalism: Statutory Dispute Resolution, Coastal Security and Inter-State River Consensus

NEWS PEG
  • The Union Home Minister chaired the 31st meeting of the Southern Zonal Council in Bengaluru, facilitating consensus between Karnataka, Tamil Nadu, Kerala, Andhra Pradesh, and Telangana on river water monitoring, coastal security radar networks, and fast-track special courts.
  • The Council resolved 24 inter-state disputes through administrative dialogue, emphasizing that Zonal Councils provide a vital constitutional and statutory platform for Cooperative and Competitive Federalism outside contentious judicial litigation.
  • Discussions focused on integrating state police databases with the National Automated Fingerprint Identification System (NAFIS) and operationalizing joint maritime coastal patrolling.
STATIC FOUNDATION
  • Zonal Councils Origin: Statutory bodies (NOT constitutional bodies) established under Part III of the States Reorganisation Act, 1956.
  • Five Zonal Councils: Northern, Central, Eastern, Western, and Southern Zonal Councils; each headed by the Union Home Minister as common Chairman; Chief Ministers of member states act as Vice-Chairman by rotation for 1 year.
  • North Eastern Council (NEC): Created separately under the North Eastern Council Act, 1971; covers Assam, Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, and Sikkim (added in 2002).
  • Inter-State Council (Article 263): Constitutional body constituted by the President in 1990 on the recommendation of the Sarkaria Commission.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Administrative Conciliation over Litigation: Zonal Councils as Consensus Engines — Resolving complex inter-state infrastructure disputes before they escalate to Supreme Court litigation.
  • Inter-State Coastal Security Grid: Joint Marine Patrols & Real-Time Intelligence — Strengthening multi-state coastal defense across the western and eastern seaboards.
  • Rationalizing Water Dispute Frameworks: Regional Technical Taskforces — Utilizing Zonal Council technical sub-committees to verify real-time river flow gauge data.
03 · GS-III: Strategic Reserves, Energy Security & Natural Gas

Strategic Natural Gas Storage Policy: Depleted Gas Fields, Salt Caverns and 15% Gas Target in Primary Energy Mix

NEWS PEG
  • The Ministry of Petroleum and Natural Gas finalized the policy framework for developing India's first Strategic Natural Gas Storage (SGS) facilities in depleted gas fields in Gujarat and salt caverns in Rajasthan with a targeted capacity of 4 billion cubic meters (BCM).
  • India imports over 50% of its domestic liquefied natural gas (LNG) consumption, leaving city gas distribution (CGD), fertilizer plants, and power stations acutely vulnerable to international spot price surges and Red Sea maritime disruptions.
  • The initiative aligns with the national strategic target to expand the share of natural gas in India's primary energy mix from its current 6.5% to 15% by 2030.
STATIC FOUNDATION
  • Natural Gas in Primary Energy Mix: India aims to raise gas share to 15% by 2030 (global average is ~24%); gas is a cleaner transitional fuel emitting 50% less CO2 than coal when burned for power.
  • Underground Gas Storage (UGS) Types: Depleted hydrocarbon reservoirs (most common and economical), Aquifers, and Salt Caverns (high deliverability and rapid withdrawal rates).
  • One Nation One Gas Grid: National gas pipeline network being expanded to over 33,500 km by PNGRB, connecting consumption centers with LNG regasification terminals.
  • Unified Tariff Mechanism: Notified by PNGRB in 2023 to eliminate multiple pipeline transit tariffs and create a single, affordable transport tariff for distant gas consumers.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Insulating Industrial Gas Users: Managing LNG Price Shocks — Providing a 30-day strategic gas buffer for critical fertilizer and power manufacturing plants.
  • Developing Salt Cavern Storage in Rajasthan: Techno-Economic Feasibility — Leveraging indigenous salt dome geology to store gas, crude, and future green hydrogen.
  • Accelerating the Gas-Based Economy: Unified Pipeline Tariffs & Domestic Pricing Reforms — Implementing Kirit Parikh committee recommendations to ensure affordable gas supply.
04 · GS-II: Public Health, Medical Education & Licensure Reforms

National Medical Commission (NMC) Licensure Reforms: National Exit Test (NExT), Standardized Clinical Training and Medical Ethics

NEWS PEG
  • The National Medical Commission (NMC) conducted nationwide stakeholder consultations with state medical councils and student bodies to finalize the roadmap for the National Exit Test (NExT) for MBBS graduates.
  • NExT is designed as a unified two-part nationwide examination: NExT Step 1 (a comprehensive theoretical examination testing problem-solving clinical competence) and NExT Step 2 (a practical clinical examination testing objective clinical skills).
  • The examination replaces multiple fragmented tests (final year MBBS exams, NEET-PG, and Foreign Medical Graduate Examination - FMGE), creating a single uniform national licensure standard for medical practice across India.
STATIC FOUNDATION
  • National Medical Commission Act, 2019: Repealed the Indian Medical Council Act, 1956, and dissolved the Medical Council of India (MCI); established the National Medical Commission (NMC) as the apex medical education regulator.
  • Four Autonomous Boards under NMC: (1) Under-Graduate Medical Education Board (UGMEB), (2) Post-Graduate Medical Education Board (PGMEB), (3) Medical Assessment and Rating Board (MARB), (4) Ethics and Medical Registration Board (EMRB).
  • National Exit Test (NExT Mandate): Section 15 of NMC Act provides for NExT as a common final-year undergraduate medical exam for grant of medical license to practice and admission to postgraduate medical courses.
  • National Medical Register (NMR): Centralized electronic registry maintained by EMRB containing verified credentials of all registered medical practitioners in India.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Standardizing Medical Competence: From Rote Memorization to Clinical Problem-Solving — Raising the baseline clinical competence of medical practitioners across all medical colleges.
  • Integrating Foreign Medical Graduates: Level Playing Field — Subjecting domestic and overseas medical graduates to identical national licensure evaluations.
  • Addressing Regional Healthcare Disparities: District Residency Programme (DRP) — Mandating postgraduate resident doctors to serve in district hospitals to improve tertiary rural healthcare.
05 · GS-II: Indian Constitution, Fundamental Rights & Digital Free Speech

Internet Shutdown Jurisprudence: Telecom Suspension Rules, 2017, Anuradha Bhasin Proportionality Test and Parliamentary Committee Review

NEWS PEG
  • The Parliamentary Standing Committee on Communications and Information Technology reviewed state compliance with Supreme Court guidelines governing the imposition of Internet Shutdowns under the Temporary Suspension of Telecom Services Rules, 2017.
  • The report revealed that India recorded over 80 localized internet suspension orders over the preceding year, with several state orders issued by sub-divisional magistrates without following mandatory confirmation reviews by state Review Committees.
  • Constitutional jurists reiterated the binding principles laid down in Anuradha Bhasin v. Union of India (2020), which held that freedom of speech and trade over the internet are constitutionally protected under Article 19(1)(a) and 19(1)(g), mandating that any shutdown must satisfy the strict four-fold test of Legality, Necessity, Proportionality, and Least Restrictiveness.
STATIC FOUNDATION
  • Temporary Suspension of Telecom Services (Public Emergency or Public Safety) Rules, 2017: Framed under Section 7 of the Indian Telegraph Act, 1885; orders must be issued by Union/State Home Secretary (or authorized joint secretary in emergencies).
  • Mandatory Review Committee: Must review the suspension order within 5 working days; Central Review Committee headed by Cabinet Secretary, State Review Committee headed by Chief Secretary.
  • Anuradha Bhasin Guidelines (2020): Indefinite suspension of internet services is illegal; suspension orders must be published in public domain; subject to judicial review; temporary orders cannot extend beyond 15 days at a time.
  • Four-Pronged Proportionality Test (Modern Dental College / Puttaswamy): (1) Legitimate Goal, (2) Rational Connection, (3) Necessity (no less intrusive alternative), (4) Balancing of fundamental rights with social benefit.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Internet Access as Modern Fundamental Right: Harmonizing Public Safety with Economic Livelihoods — Mitigating multi-million dollar daily losses to gig workers, UPI payments, and telemedicine during shutdowns.
  • Strict Compliance with Proportionality: Selective Whitelisting over Blanket Blackouts — Utilizing targeted website blocking rather than shutting down complete regional cellular telecommunications.
  • Enforcing Executive Transparency: Public Proclamation of Suspension Orders — Ensuring all shutdown orders are immediately published online to facilitate prompt judicial challenge.
06 · GS-III: Environment, River Conservation & Urban Lake Revival

Urban Lake Rejuvenation: Wetland Encroachment, Constructed Wetlands (Phyto-Remediation) and Sponge City Architecture

NEWS PEG
  • The National Green Tribunal (NGT) issued bailable warrants against municipal commissioners in rapidly urbanizing metropolitan cities (Bengaluru, Hyderabad, Chennai) for failing to protect urban lake catchments from illegal real estate encroachments and untreated raw sewage inflow.
  • The Central Pollution Control Board (CPCB) reviewed ecological restoration pilots using decentralized Constructed Wetlands (Phyto-Remediation), where indigenous aquatic macrophyte plants (Typha, Vetiver, Canna) treat municipal wastewater naturally without chemical inputs.
  • Urban planners urged state governments to adopt the 'Sponge City' planning framework to interconnect historical cascade lake systems, enabling urban catchments to absorb peak monsoon runoff and recharge depleted urban groundwater aquifers.
STATIC FOUNDATION
  • Cascade Lake Systems (Eris / Tanks): Traditional South Indian hydrological engineering where interconnected chains of percolation tanks capture surface runoff sequentially; overflow from upstream tanks cascades into downstream reservoirs without urban flooding.
  • Phyto-Remediation & Constructed Wetlands: Engineered wastewater treatment systems using natural processes involving wetland vegetation, soils, and associated microbial assemblages to filter suspended solids, absorb excess Nitrogen/Phosphorus, and degrade organic pollutants (BOD/COD).
  • Eutrophication Mechanism: Excess nutrient enrichment (Nitrates and Phosphates from sewage/fertilizers) leads to rapid algal blooms; when algae die, aerobic decomposition by bacteria depletes Dissolved Oxygen (DO), causing massive fish mortality.
  • Mission Amrit Sarovar (2022): Aims to develop and rejuvenate 75 water bodies in each district of the country as part of Azadi ka Amrit Mahotsav.
PRELIMS TRAP & PYQ BRIDGE MAINS ENHANCEMENT
  • Reviving Historical Cascade Hydrology: Reconnecting Lost Inflow Stormwater Drains (Rajakaluves) — Eliminating bottlenecks to restore natural surface water flow into urban percolation lakes.
  • Decentralized Low-Cost Wastewater Treatment: Scaling Constructed Wetlands in Urban Parks — Treating municipal greywater naturally to recharge urban recreational water bodies.
  • Legal Protection for Urban Commons: Enforcing Strict NGT Buffer Zones — Demarcating statutory 30–75 meter no-construction buffer zones around all notified water bodies.
TURN UNDERSTANDING INTO A HABIT

Keep learning in GyanGram.

Explore visual decks, syllabus paths and PYQ practice in the app.

Get the appOpen web app

Found an issue? Send a correction · Editorial standards