What is the Shaksgam Valley dispute?

The Shaksgam Valley is a territory north of the Karakoram range ceded by Pakistan to China in 1963. India rejects this agreement as it considers the region part of its sovereign territory of Ladakh.

What is DRDO's Scramjet engine technology?

A Scramjet (Supersonic Combustion Ramjet) allows engines to operate at hypersonic speeds (Mach 5+). DRDO recently tested an actively cooled combustor to prevent overheating during such high-speed flights.

GS-4 Current Affairs

UPSC Current Affairs April 28, 2026: Constitution, Economy, Foreign Policy, AI, Environment & Ethics – Complete UPSC Notes

ByDev Upadhyay 28 April 202628 April 2026

UPSC Current Affairs April 28, 2026: Constitution, Economy, Foreign Policy, AI, Environment & Ethics — Complete UPSC Notes Date: Tuesday, April…