Which organization has designed India's first indigenous 350 kg thrust-class disposable turbojet engine?

India has developed its first indigenous disposable turbojet engine in the 350 kg thrust category; it was designed by DRDO's GTRE and manufactured by Azad Engineering. Developed for cruise missiles, UAVs, and other modern defense systems, this engine will provide a significant boost to 'Atmanirbhar Bharat' (Self-Reliant India) and indigenous technology in the defense sector.