19 October 2025

• Festival: Diwali 2025 falls in the third week of October. The festival's economic dimension, consumer spending, gold purchases and fireworks regulation, is in focus.
• Environment: Delhi's air quality index entered the "Poor" category following Diwali celebrations, triggering GRAP Stage II restrictions.
• Trade: India-UK Free Trade Agreement negotiations continued, with both sides aiming to conclude by early 2026.
• Health: The All India Institute of Medical Sciences revised clinical protocols for antibiotic stewardship amid rising antimicrobial resistance.
• Science: New findings on exoplanet atmospheric composition using the James Webb Space Telescope were published.

GS area: Environment (Air Pollution, Governance)

GRAP Stage II restrictions were triggered in the Delhi-NCR region following Diwali-related air quality deterioration.

• GRAP authority: the Commission for Air Quality Management in National Capital Region and Adjoining Areas (CAQM) activates GRAP stages.
• GRAP structure: four escalating stages based on Air Quality Index (AQI) readings.
  • Stage I: AQI 201-300 (Poor).
  • Stage II: AQI 301-400 (Very Poor).
  • Stage III: AQI 401-450 (Severe).
  • Stage IV: AQI above 450 (Severe Plus).
• Stage II restrictions: ban on diesel generator sets except for emergency services; enhanced public transport frequency; ban on coal and firewood use in tandoors and open eateries; ban on construction and demolition activity in NCR.
• AQI categories: Good (0-50), Satisfactory (51-100), Moderate (101-200), Poor (201-300), Very Poor (301-400), Severe (401-500).
• Diwali firecracker impact: particulate matter 2.5 (PM2.5) typically spikes 5 to 10 times baseline on Diwali night. Delhi's geographical setting in the Indo-Gangetic Plain, with the Himalayas blocking northward air movement, creates a natural pollution trap in winter.
• Legal context: the National Green Tribunal and the Supreme Court have issued successive orders restricting firecrackers to green crackers with certified lower emission levels.

Static linkage: Air pollution, CAQM, environmental governance.

GS area: International Relations (Trade Agreements)

India-UK Free Trade Agreement negotiations continued. Both sides target conclusion by early 2026.

• Context: negotiations began in January 2022. More than 14 rounds of talks were completed. The deal stalled briefly during UK's political transitions (three prime ministers in 2022) but resumed under the Labour government.
• Key contested areas:
  • Scotch whisky: UK wants tariff reduction on Scotch (currently 150 per cent). India is cautious about domestic industry impact.
  • Automobiles: UK seeks lower tariff on electric vehicles.
  • Services: India wants easier movement of professionals, especially IT and accounting professionals.
  • Social Security: India wants the Double Contribution Convention (DCC) so Indian workers in the UK do not pay into both Indian and UK social security simultaneously.
• Bilateral trade: approximately USD 20 billion. Target: USD 100 billion by 2030.
• Strategic context: the India-UK 2035 Vision framework covers trade, technology, defence and security in a comprehensive bilateral partnership.

Static linkage: India's trade agreements, WTO, India-UK relations.

GS area: Science and Technology (Health, Biotechnology)

AIIMS revised its clinical protocols for antibiotic stewardship.

• AMR definition: antimicrobial resistance occurs when bacteria, viruses, fungi or parasites evolve mechanisms to survive drugs designed to kill them. Bacteria develop resistance through mutation or by acquiring resistance genes.
• India's AMR burden: India has one of the highest rates of antibiotic consumption in the world. Over-the-counter antibiotic sales (without prescription) are a primary driver.
• Global projections: the WHO estimates AMR could cause 10 million deaths annually by 2050.
• National Action Plan on AMR (2017-2021): India's framework for containing AMR. Includes awareness campaigns, reducing antibiotic use in agriculture, and strengthening surveillance.
• ICMR AMR surveillance: ICMR's annual antimicrobial resistance surveillance report tracks resistance patterns in major pathogens.
• Antibiotic stewardship: hospital programmes that ensure antibiotics are prescribed only when needed, in the right dose and for the correct duration. AIIMS revising protocols is part of this stewardship approach.
• Key AMR challenge in India: last-resort antibiotics (carbapenems, colistin) now face resistance from carbapenem-resistant Enterobacteriaceae and MCR-1 colistin-resistant bacteria.

Static linkage: Public health, science and technology, drug regulation.

GS area: Science and Technology (Space)

New findings from the James Webb Space Telescope (JWST) on exoplanet atmospheric composition were published.

• JWST: launched December 25, 2021; a joint mission of NASA, ESA and the Canadian Space Agency. L2 Lagrange point orbit (1.5 million kilometres from Earth, in the Earth-Sun system's second gravitational equilibrium point).
• Mirror: 6.5-metre gold-beryllium primary mirror; designed to detect infrared radiation.
• Exoplanet atmospheric detection method: as a planet transits (passes in front of) its host star, some starlight passes through the planet's atmosphere. Different molecules absorb different wavelengths. JWST can detect water vapour, CO₂, methane, ammonia and other molecules.
• Recent finding: detection of carbon dioxide and methane in a rocky exoplanet's atmosphere in the habitable zone of its star, a significant step toward identifying potentially habitable worlds.
• Comparison with Hubble: JWST observes primarily in infrared. Hubble observes primarily in visible and ultraviolet light. JWST's larger mirror and cooler detectors make it more sensitive to faint, distant or cool objects.

Static linkage: Space science, astronomy.

GS area: Environment (Pollution, Governance)

The Supreme Court's green cracker framework applies each Diwali season.

• Supreme Court order (2018): banned the manufacture and sale of traditional firecrackers in Delhi-NCR for Diwali. Only "green crackers" with certified lower emissions are permitted.
• NEERI standard: the National Environmental Engineering Research Institute defines green cracker standards. Green crackers must emit at least 30 per cent lower particulate matter than conventional equivalents.
• CSIR laboratories: the Council of Scientific and Industrial Research developed formulations for green crackers. The "SWAS," "STAR" and "SAFAL" categories cover sparklers, aerial crackers and ground-based crackers respectively.
• Enforcement challenge: widespread non-compliance with the green cracker standard because conventional firecrackers are cheaper and widely available from states outside Delhi's jurisdiction.
• National Green Tribunal: exercises concurrent jurisdiction with the Supreme Court over environmental matters. NGT orders on cracker bans have been the primary enforcement mechanism in non-Delhi states.

Static linkage: Environmental law, Supreme Court judgments, air pollution.

• ASEAN-India Year of Tourism 2025: ASEAN and India designated 2025 as the Year of Tourism, increasing people-to-people connectivity. Air routes, tourism visa facilitation and cultural exchanges are the focus.
• Pradhan Mantri Fassal Bima Yojana (PMFBY): Kharif 2025 claims settlement was accelerated using satellite-based remote sensing for crop loss assessment. PMFBY provides crop insurance at actuarial premiums with government subsidy.
• India's rice export ban lifted: the general export ban on non-basmati white rice, imposed in July 2023, was lifted for most destinations. This follows a good kharif harvest. Rice is India's largest agricultural export by volume.