On April 25, 2025, the Defence Research & Development Laboratory (DRDL), a Hyderabad-based laboratory of DRDO, achieved a significant milestone in the field of Hypersonic Weapon Technology. DRDL conducted long-duration Active Cooled Scramjet Subscale Combustor ground testing for more than 1,000 seconds at the newly built state-of-the-art Scramjet Connect Test Facility at Hyderabad.