The UPSC Weekly Quiz (June 29–July 6, 2025) covered topics including ham radio use from the ISS, INS Tamal’s commissioning in Russia, Gulf of Paria geography, India’s fertiliser imports, Nipah virus alerts, and key statistics and defence updates.

BulletsIn

• Ham radio used by Indian astronaut to speak to students from ISS
• Licensed ham radio used for education, emergency; allowed in India from age 12
• INS Tamal commissioned in Russia, last foreign-built Indian Navy frigate
• Gulf of Paria is between Trinidad and Venezuela, PM Modi highlighted it in diaspora address
• India imports 100% of muriate of potash; 20–25% fertilisers from Gulf nations
• Nipah virus alert in Kerala; spread by bats, person-to-person transmission possible
• Prasanta Chandra Mahalanobis credited for founding Indian statistics and sample surveys
• Defence Acquisition Council (DAC) approves ₹1.05 lakh crore procurement; headed by Defence Minister
• India, US to sign new 10-year defence partnership framework this year
• Calorie gap narrowed between top and bottom 5% in India due to drop in top-tier intake