UPSC current affairs, 17 September 2026

'Census Town' Criteria Flagged as Outdated Ahead of Census 2027

Why in news: The Housing and Urban Affairs Ministry has told Parliament that the four-decade-old Census Town definition understates India's real urbanisation, but the RGI will retain it unchanged for Census 2027.

For Mains: Cite the Census Town/Statutory Town gap as a live example of India's 'under- bounded' urbanisation — a settlement can be urban in character yet lack an elected Urban Local Body and 74th Amendment protections, straining service delivery.

Cabinet Clears ₹10,998-Crore Elevated Corridor to Decongest Varanasi

Why in news: The Cabinet Committee on Economic Affairs has approved a 43.2 km elevated corridor along the Varuna river in Varanasi, aimed at cutting chronic congestion in one of India's most heritage-dense, pilgrimage-heavy cities.

For Mains: Pair this with the Kashi Vishwanath Corridor as a case of infrastructure-led heritage-city management, or use it to explain HAM as a hybrid financing model between EPC and pure BOT-Toll structures.

MMDR Amendment, 2026: A New Centre-State Flashpoint Over Mining Revenue

Why in news: A provision in the newly enacted Mines and Minerals (Development and Regulation) Amendment Act, 2026 restricts States from taxing mineral rights or mineral-bearing land, reviving the fiscal-federalism debate just two years after the Supreme Court affirmed States' taxing power.

For Mains: Use this as a live case of Union-State fiscal federalism tension — pair it with the 2024 nine-judge verdict and the 15th Finance Commission's resource-sharing debates for a well-rounded answer.

Delhi's Electoral Roll Deletions Under SIR Fall Below 2025 Turnout in 24 Seats

Why in news: An analysis of Delhi's Special Intensive Revision (SIR) draft electoral rolls shows 24 of 70 Assembly constituencies now have fewer registered electors than the number of people who actually voted there in the February 2025 election.

For Mains: Frame this as a test case for balancing roll accuracy (removing bogus/duplicate entries) against the risk of disenfranchising genuine electors during a mass revision exercise.

India Rejects Pakistan-China 'Boundary Joint Commission', Reasserts Sovereignty

Why in news: India has rejected the first meeting of a Pakistan-China Boundary Joint Commission held in Islamabad, calling it legally baseless since it touches territory — including the Shaksgam Valley — that India regards as under illegal occupation.

For Mains: Link India's rejection to its consistent 'PoK is part of India' doctrine and to CPEC's passage through disputed territory — a recurring India-Pakistan-China trilateral IR theme.

Centre Tells Delhi HC an Adult May Nominate a Same-Sex Partner for Medical Decisions

Why in news: The Union Health Ministry and the National Medical Commission have told the Delhi High Court that a competent adult can nominate any partner — including one in a same-sex relationship — to take medical decisions on their behalf if they become incapacitated.

For Mains: Connect incremental rights recognition (medical nomination) with the broader, still-unresolved marriage-equality debate — a useful contrast between judicial restraint and executive accommodation.

Merchant Discount Rate Returns to Large UPI Transactions from October 15

Why in news: A 0.4% Merchant Discount Rate will apply from October 15, 2026 to UPI payments of ₹2,000 or more made to mid-sized and large merchants, ending nearly a decade of zero-MDR UPI and triggering political pushback.

For Mains: Use the MDR rollout to discuss the trade-off between digital-payment infrastructure's fiscal sustainability (banks/NPCI need revenue) and India's financial-inclusion goal of near- zero-cost transactions.

India's Real GDP Grows 7.8% in Q1 FY27 as New 2022-23 Base Year Kicks In

Why in news: India's real GDP grew 7.8% in April-June 2026 — its fastest quarterly pace in three years — even as the government simultaneously updated the GDP/GVA base year from 2011-12 to 2022-23.

For Mains: Distinguish nominal vs real GDP and explain why a base-year revision is a measurement recalibration, not economic growth or contraction in itself — a frequently confused concept.

The E20 Ethanol Blend: Savings Claim Undercut by Mileage Loss, Finds Analysis

Why in news: An independent analysis finds India's E20 petrol blend has cost consumers an estimated ₹88,234 crore in extra fuel spending over three years because of lower mileage, undermining the policy's central savings claim.

For Mains: A ready-made case study on policy trade-offs between energy security, farmer income (sugarcane/maize demand) and consumer costs — pair with India's biofuel and food-security policy debates.

Jhiram Valley Verdict: All 10 Convicts Get Death Penalty in 2013 Maoist Attack

Why in news: A special NIA court in Jagdalpur has sentenced all 10 convicts to death for the 2013 Jhiram Valley ambush in Chhattisgarh that killed 27 people, including senior Congress leaders, even as critics say the conspiracy's masterminds remain unidentified.

For Mains: Use this verdict to discuss the distinction between operational convictions and unresolved conspiracy-level accountability in Left-Wing Extremism cases — a recurring internal-security theme.

SEMICON India 2026 Opens as Government Unveils Semiconductor Mission 2.0

Why in news: The fifth edition of SEMICON India, the government's flagship chip-industry event, opens today in New Delhi even as the Centre pivots to 'Semiconductor Mission 2.0' to consolidate India's chip ecosystem and integrate it into global supply chains.

For Mains: Link this to Atmanirbhar Bharat and supply-chain diversification away from Taiwan/China — a strong GS3 (economy/S&T) and GS2 (international relations, strategic autonomy) crossover theme.

Ethics Case Study: Rebuilding Institutional Integrity After the NEET-UG Paper Leak

Why in news: Following this year's NEET-UG paper leak, the National Testing Agency has removed 600 subject-matter experts linked to question-setting and is recruiting fresh experts and translators — a live governance-ethics question on restoring integrity in high-stakes public examinations.