The stratospheric lighter-than-air platform, developed in Agra, climbed to 21 km and held 20 km for over half an hour, marking progress in India's long-endurance aerial surveillance capability. BulletsIn DRDO announced on October 6, 2026 the successful flight trial of its indigenously developed High-Altitude Platform System, known as HAPS. HAPS is a lighter-than-air, long-endurance stratospheric