UPSC current affairs — 19 August 2026

The 8 exam-relevant stories for 19 August 2026.

1. Census 2027 questionnaire to seek parents' religion, birthplace, and flexible caste declaration options (Polity)
   The draft questionnaire for the upcoming Census incorporates granular questions on parental birthplace and religion, alongside flexible self-declaration options for caste.
2. BRICS nations oppose EU's Carbon Border Tax and demand enhanced climate financing (IR)
   BRICS member states condemned the European Union's unilateral carbon border adjustment mechanism, calling for substantial international climate adaptation funding for developing countries.
3. Karnataka HC quashes Governor's suspension of KPSC Chief, citing lack of Cabinet aid and advice (Polity)
   The High Court ruled that a Governor cannot suspend a Public Service Commission chairperson without the aid and advice of the State Cabinet, clarifying constitutional powers under Article 317.
4. India's rapid transition towards E20 fuel blends faces vehicular and logistical hurdles (Economy)
   As India accelerates towards 20% ethanol-blended petrol (E20), concerns over engine wear, mileage drops, and the absence of unblended fuel options for legacy vehicles have come to the fore.
5. Supreme Court prohibits blocking of elephant corridors, orders nationwide survey (Environment)
   The Supreme Court ruled that States cannot obstruct traditional elephant migration pathways and directed the Centre to conduct a national survey while banning harmful deterrence measures like spikes and fireballs.
6. CAG audit of Green India Mission highlights flaws in forest restoration strategy (Governance)
   A performance audit by the Comptroller and Auditor General found that the National Mission for a Green India is excessively focused on plantation headcount rather than holistic ecological and forest restoration.
7. Rotating detonation engines emerge as the next frontier in propulsion thermodynamic efficiency (S&T)
   Rotating Detonation Engines (RDEs) are advancing in aerospace research, offering a potential 10% to 25% leap in thermodynamic efficiency over conventional deflagration-based combustion engines.
8. Ministry of Defence notifies new positive indigenisation list covering major military platforms (Security)
   The Defence Ministry has issued a fresh indigenisation list barring imports of selected helicopters, warship subsystems, and weapon systems to boost domestic manufacturing.

All stories for 19 August 2026 · ← 18 August 2026 · 21 August 2026 →