Indigenous AIP system for Indian Navy’s diesel-electric submarines achieves key milestone with inauguration of Setting to Work Phase-2 Activity

The Ministry of Defence announced a key milestone in enhancing the Indian Navy's underwater capabilities with the inauguration of the 'Setting to Work Phase-2' activity for an indigenous Air Independent Propulsion (AIP) system Energy Module. Developed by the Naval Materials Research Laboratory (NMRL) of DRDO, the AIP system increases the underwater endurance of diesel-electric submarines by reducing their reliance on atmospheric oxygen. The inauguration ceremony took place at Larsen and Toubro's facility in Hazira, Gujarat. Following rigorous testing and power production in this next phase, the module will be handed over to Mazagon Dock Shipbuilders Limited for integration into a Kalvari-class submarine in early 2027.