5 September 2025

• Education: India Rankings (NIRF) 2025 released IIT Madras leads overall for the seventh consecutive year.
• Teachers' Day: Dr. Sarvepalli Radhakrishnan's birth anniversary. His life, offices, and philosophy are standard prelims territory.
• Agriculture: India produces 41 per cent of global millets Shree Anna Mission and Atmanirbharta in millets.
• Health: India's ageing crisis 149 million elderly in 2022, projected to reach 347 million (20.8%) by 2050.
• Diplomacy: India-Singapore Comprehensive Strategic Partnership marks 60 years of diplomatic ties.

GS area: Modern Indian History, Polity (Constitutional posts)

5 September is Teachers' Day in India the birth anniversary of Dr. Sarvepalli Radhakrishnan.

• Born: 5 September 1888, Tirutani, Andhra Pradesh (then Madras Presidency).
• Died: 14 April 1975.
• Education: Madras Christian College.
• Academic career: Taught at Mysore University and Calcutta University. Became the Spalding Professor of Eastern Religions and Ethics at Oxford University a landmark for Indian philosophy in the West.
• Diplomatic career: Ambassador to the Soviet Union (1949-1952). Built the India-USSR relationship during a critical Cold War period.
• Constitutional offices:
  • First Vice President of India (1952-1962). Under Article 64, the VP is the ex-officio Chairman of the Rajya Sabha.
  • Second President of India (1962-1967). Article 52 onwards deals with the President's powers and position.
• Contribution to education: Chaired the University Education Commission (1948-49) whose recommendations shaped India's university system.
• Philosophy: Bridged Indian (Vedanta) and Western philosophy. Promoted religious pluralism and the unity of religions at an experiential level.
• Why the date became Teachers' Day: Students at Radhakrishnan's college wanted to celebrate his birthday. He asked them instead to dedicate the day to all teachers.

Static linkage: Polity (Vice President, President), modern history (freedom struggle era statesmen).

GS area: Education, Governance

The Ministry of Education released India Rankings 2025 under the National Institutional Ranking Framework (NIRF).

• Framework authority: Ministry of Education.
• Five parameters with weightage:
  • Teaching, Learning, and Resources: 30 per cent.
  • Research and Professional Practice: 30 per cent.
  • Graduation Outcomes: 20 per cent.
  • Outreach and Inclusivity: 10 per cent.
  • Perception: 10 per cent.
• 2025 overall winner: IIT Madras (seventh consecutive year).
• Key category winners: IIT Madras (Engineering, 10th year); IISc Bengaluru (Universities and Research Institutions); IIM Ahmedabad (Management); AIIMS Delhi (Medical); NLSIU Bengaluru (Law); IIT Roorkee (Architecture); Hindu College (Colleges, 2nd year).
• Participation growth: 7,692 unique institutions applied; 14,163 submissions a 297 per cent rise since 2016.
• Policy significance: NIRF rankings drive institutional improvement by making performance transparent. They inform the HRD Ministry's grant allocation decisions.

Static linkage: Education (institutions), governance.

GS area: Social Justice, Demography

India's elderly population problem is a prelims and mains staple.

• Current count (2022): About 149 million persons aged 60 and above.
• Projected (2050): About 347 million, which will be 20.8 per cent of the population.
• Health burden: Out-of-pocket expenditure (OOPE) accounts for about 48 per cent of total health spending (National Health Accounts 2021-22). For the elderly with no income, this is devastating.
• Insurance gap: Only 20 per cent of elderly have health insurance. Coverage is higher for men and urban residents.
• Geriatricians: India has only about 6,000 trained geriatricians for 149 million elderly a severe shortage.
• PM-JAY: Pradhan Mantri Jan Arogya Yojana was extended in 2024 to provide universal health coverage to all citizens above 70, regardless of income.
• NPHCE: National Programme for Health Care of Elderly establishes geriatric clinics and regional geriatric centres at AIIMS and medical colleges.
• Total Fertility Rate: India's TFR is about 2.0 below replacement level of 2.1. An ageing population with a shrinking workforce creates fiscal and social stress.

Static linkage: Social justice (vulnerable sections), demography.

GS area: Agriculture, Economy, Environment

India's leadership in millet production is a recurring UPSC topic.

• India's production: About 16 million tonnes annually approximately 41 per cent of global millet production.
• Top producing states: Rajasthan, Maharashtra, Karnataka, Uttar Pradesh, Madhya Pradesh (together over 80 per cent of output).
• Exports (2022-23): Nearly 1.8 million tonnes, mainly to UAE, Nepal, and Saudi Arabia.
• Nutritional value: Rich in iron, calcium, dietary fibre, and protein. Particularly valuable for addressing anaemia and malnutrition.
• Environmental advantage: Require about 70 per cent less water than rice. Thrive in rainfed, arid, and semi-arid conditions. Low-input crops that reduce dependence on fertilisers and irrigation.
• Shree Anna Mission (2023): A six-year mission to boost research, processing, branding, and market integration for millets. Budget from the Ministry of Agriculture.
• International Year of Millets (2023): India led the United Nations General Assembly resolution declaring 2023 the IYoM.
• Yield gap: Current yield is about 1.2 tonnes per hectare. Much lower than rice or wheat. Higher-yield varieties under development at ICAR.

Static linkage: Agriculture, food security.

GS area: International Relations

Singapore Prime Minister's visit to India marked 60 years of diplomatic relations and the upgrade to Comprehensive Strategic Partnership.

• Singapore's strategic importance: City-state controlling the Malacca Strait the world's most important sea lane for oil tankers and container ships.
• Economic ties: CECA (Comprehensive Economic Cooperation Agreement, 2005) was India's first FTA with an ASEAN nation. AITIGA (ASEAN-India Trade in Goods Agreement) is separate.
• Eight sectors of cooperation in 2025 roadmap:
  • Economic: Semiconductor sector, capital markets, CECA review.
  • Digital: UPI-PayNow integration, fintech, cybersecurity, AI.
  • Sustainability: Green hydrogen, civil nuclear, climate action.
  • Connectivity: Maritime and aviation links, Digital Shipping Corridor.
  • Skills: National Centre of Excellence in Chennai for advanced manufacturing.
  • Healthcare: Digital health, med-tech R&D.
  • Defence: Joint exercises, maritime security, counter-terrorism.
  • People-to-people: Student and professional exchanges.
• UPI-PayNow link: India's Unified Payments Interface is linked to Singapore's PayNow, enabling real-time cross-border payments. Operational since 2023.

Static linkage: India-ASEAN relations, bilateral trade, maritime security.

GS area: Science and Technology

NITI Aayog's Frontier Tech Hub and IISc published a report on 2D materials.

• What they are: Materials that are one atom thick. The most famous is graphene (a single layer of carbon atoms arranged in a hexagonal lattice).
• Discovery: Graphene was isolated in 2004 by Andre Geim and Konstantin Novoselov at Manchester University. They won the 2010 Nobel Prize in Physics.
• Other 2D materials: Molybdenum disulfide (MoS2), tungsten disulfide (WS2), hexagonal boron nitride (h-BN).
• Remarkable properties:
  • About 200 times stronger than steel by weight.
  • Stretchable by up to 20 per cent.
  • Excellent electrical conductivity (electrons move faster than in silicon).
  • Excellent heat conductivity.
  • Nearly transparent.
• Applications:
  • Semiconductor transistors: 2D transistors extending Moore's Law past silicon's physical limits.
  • Neuromorphic computing: Atom-thin memristors that mimic brain synapses.
  • Batteries and supercapacitors: Higher energy density for EVs.
  • Aerospace composites, water filtration, flexible electronics.

Static linkage: Science and technology (materials science, semiconductors).

GS area: Environment, Governance

The Ministry of Environment, Forest and Climate Change notified the Environment Audit Rules 2025 on 29 August 2025.

• What it creates: A new category of certified "environment auditors" professionals or accredited agencies authorised to inspect, verify, and audit projects for environmental compliance.
• Primary functions: Conduct systematic project audits, sample and analyse emissions and effluents, report non-compliance, and compute environmental compensation.
• Why it matters: Central and State Pollution Control Boards lack manpower and technical capacity to audit all industrial and infrastructure projects. Environment auditors fill this gap.
• Related frameworks: Verification under Green Credit Rules, E-Waste Rules, and Plastic Waste Management Rules.
• EP Act, 1986: Environment Audit Rules are notified under this parent statute.
• ESG significance: Independent environment audit outputs feed into ESG ratings for companies a growing investment criterion.

Static linkage: Environmental laws, governance.

GS area: Social Justice, Tribal Welfare

PM JANMAN (PM Particularly Vulnerable Tribal Groups Development Mission) came up in the context of need for separate PVTG census data.

• Launched: 2023.
• Budget: ₹24,104 crore.
• Objective: Saturate basic services to the 75 PVTGs across 18 states and Andaman and Nicobar Islands.
• Services covered: Safe housing (PMAY-G), clean drinking water, road connectivity, telecom, education, healthcare (mobile medical units, Ayushman Bharat), electricity (Saubhagya), anganwadis, and livelihoods.
• Implementing framework: Saturation approach 100 per cent coverage of each PVTG habitation rather than sampling.
• Need for separate enumeration: Current census data does not separately enumerate PVTGs. Without population data, scheme targeting is imprecise. A separate PVTG enumeration in Census 2027 is being considered.

Static linkage: Tribal affairs, social justice.

GS area: International Relations, Geography

Nepal's Prime Minister raised the territorial claim over Lipulekh Pass with Chinese President Xi Jinping at the SCO Summit 2025 in Tianjin.

• Location: Pithoragarh district, Uttarakhand. Near the India-Nepal-China trijunction.
• Altitude: About 5,334 metres (17,500 feet).
• Historic use: Trade and pilgrimage route between India and Tibet (Kailash Mansarovar Yatra).
• India's position: India administers Lipulekh and considers it part of Uttarakhand. India opened it as its first border trade post with China in 1992.
• Nepal's claim: Nepal incorporated Lipulekh, Kalapani, and Limpiyadhura in its 2020 revised political map. The map was embedded in the Nepalese constitution.
• China's stance: Treats it as an India-Nepal bilateral issue while not discouraging Nepal's assertion.
• Sutlej-Yamuna-Link-style deadlock: Like India's internal river disputes, this trijunction involves overlapping sovereignty claims with no clear resolution mechanism.

Static linkage: India-Nepal relations, border disputes (international relations).

• Aluminium industry stress: India's aluminium extrusion capacity is 3 million tonnes per annum but actual utilisation is only 1.2 million tonnes. Cheap imports from ASEAN countries (under FTA concessions) and plastic substitution are the twin threats.
• Beas River origin: Rises at Rohtang Pass in the Pir Panjal range, Himachal Pradesh. Known in Vedic times as Vipasa and by Greeks as Hyphasis Alexander's soldiers refused to cross it.