# India aerospace and defense manufacturing developments > Live situation record from CLSTR: https://clstr.news/situations/india-aerospace-and-defense-manufacturing-developments > Updated: 2026-09-16T06:08:12.000Z. Sources: 3. Developments: 2. India is advancing several indigenous aerospace and defense projects through international collaborations. Hindustan Aeronautics Limited (HAL) and Safran Helicopter Engines have contracted with SAFHAL Helicopter Engines Pvt. Ltd. to develop the ‘Aravalli’ engine, a high-power engine designed for the upcoming 13-ton Indian Multi-Role Helicopter (IMRH) and its naval variant. Simultaneously, HAL has finished its initial 40-aircraft order for the TEJAS MK-1, though the transition to the advanced TEJAS MK-1A variant has encountered delays due to engine supply issues from GE Aerospace. In the unmanned aerial vehicle sector, Bharat Forge and Pratt & Whitney Canada are collaborating to integrate advanced turboprop engines into the Defence Research and Development Organisation’s (DRDO) high-altitude, long-endurance (HALE) UAV programme. This partnership focuses on engine compatibility and airframe integration to support long-endurance surveillance and reconnaissance capabilities. ## Timeline ### 2026-09-16: Bharat Forge and Pratt & Whitney Canada to develop engines for India's HALE UAV Bharat Forge and Pratt & Whitney Canada are collaborating to integrate advanced turboprop engines into India's DRDO-developed high-altitude, long-endurance (HALE) unmanned aerial vehicle programme. 2 sources. https://clstr.news/cluster/bharat-forge-and-pratt-whitney-canada-to-develop-engines-for-indias-hale-uav ### 2026-09-13: HAL advances aerospace projects with Aravalli engine and TEJAS production HAL is advancing India's aerospace capabilities through the development of the Aravalli helicopter engine and the production of TEJAS MK-1A fighter jets, despite ongoing engine supply delays from GE Aerospace. 2 sources. https://clstr.news/cluster/hal-advances-aerospace-projects-with-aravalli-engine-and-tejas-production --- Cite as: India aerospace and defense manufacturing developments. CLSTR, https://clstr.news/situations/india-aerospace-and-defense-manufacturing-developments