The Defence Research and Development Laboratory (DRDL) is an Indian missile development laboratory, which functions as a constituent part of the Defence Research and Development Organisation (DRDO). DRDL's core charter is the design, development, and flight evaluation of various missile systems for the Indian armed forces.
The laboratory was formally established in June 1961 at the campus of the Defence Science Centre in Delhi, later shifting its base to Kanchanbagh, Hyderabad. Its genesis lies in the Special Weapons Development Team, constituted in 1958 by the Indian government to research guided missile weapons development. This team was founded by S. P. Chakravarti. The creation of DRDL was driven by the need to achieve self-reliance in critical defence technologies, particularly in missile systems, which was later formalized under the Integrated Guided Missiles Development Program (IGMDP).
DRDL's mechanism involves research in areas like Aerodynamics, Computational Fluid Dynamics, and various propulsion systems, including Solid, Liquid, Ramjet, and Scramjet Propulsion. The laboratory is responsible for developing missile-based weapon systems for deployment across underwater, sea, land, and air platforms. Key products connected to DRDL include the Akash surface-to-air missile, the Astra air-to-air missile, and the Nag anti-tank guided missile.
Recently, DRDL has made significant advancements in India's Hypersonic Cruise Missile Development Programme. In May 2026, DRDL successfully conducted a long-duration ground test of an Actively Cooled Full Scale Scramjet Combustor at its Scramjet Connect Pipe Test (SCPT) Facility in Hyderabad, achieving a run-time of over 1,200 seconds. This test, which built upon an earlier 700-second test in January 2026, validates the indigenous development of supersonic air-breathing propulsion technologies and advanced thermal management systems. Additionally, DRDL is advancing a next-generation navigation and guidance electronics package to improve missile accuracy, aligning with the national vision of Aatmanirbhar Bharat.