BHEL Signs Agreement with DRDO’s NSTL for Naval Infrared Suppression System 
In April 2026, Bharat Heavy Electricals Limited (BHEL) signed a Licensing Agreement for Transfer of Technology (LAToT) with Naval Science and Technological Laboratory (NSTL), a constituent laboratory of the Defence Research and Development Organisation (DRDO), for the Gas Turbine–Infrared Suppression System (GT-IRSS) used in naval vessels.
About Naval Technology Agreement:
Technology: GT-IRSS, developed by NSTL for LM2500 (Land and Marine) gas turbines, reduces infrared signature of naval ships by cooling exhaust and shielding heat emissions.
Execution: Under the agreement, BHEL will handle technology absorption and execution of the GT-IRSS solution.
Significance: The agreement strengthens indigenous defence manufacturing, reduces reliance on foreign technology, enables BHEL’s entry into high-value defence sector, and supports Make in India and Aatmanirbhar Bharat initiatives.