drone expo 2026

DRDO’s Fuel Cell-based AIP System to be Fitted Onboard INS Kalvari, Significantly Enhancing its Submerged Endurance 

DRDO & Naval Group France sign agreement to safely integrate the indigenous  system in Kalvari-class submarines

Mumbai: In a major boost to ‘Atmanirbhar Bharat’, Fuel Cell-based Air Independent Propulsion (AIP) system of DRDO’s Naval Materials Research Laboratory (NMRL) will soon be fitted onboard INS Kalvari. 
An agreement was signed between senior officials of NMRL and Naval Group France in Mumbai on January 23, 2023 to extend cooperation to enter into the detailed design phase for integration of indigenous AIP in the Kalvari class submarines. As part of the agreement, Naval Group France will certify the AIP design for integration in the submarines.
The AIP has a force multiplier effect on lethality of a diesel electric submarine as it enhances the submerged endurance by several folds. It has merits in performance compared to other technologies and is unique as the hydrogen is generated onboard. This technology has been successfully developed by NMRL with the support of Indian industry partners. The technology has now reached the stage of maturity for industrialisation.
It is worth mentioning that the land-based prototype of the NMRL’s AIP has been tested successfully. This new endeavour will be a significant step towards the detailed design certification of the energy module, which will be performed by NMRL along with Indian industry and design of the platforms impacted by the integration of the indigenous AIP inside the Indian submarine by Naval Group. These actions will seamlessly lead the way to start of localisation and industrialization of AIP including the hull fabrication by the Indian industry for future fitment onboard the submarines.
Speaking on the occasion, Chairman & CEO at Naval Group France Pierre Eric Pommellet said, they are proud to cooperate with Indian stakeholders to safely integrate the AIP in the Kalvari class submarines, which have been built by Mazagon Dock Shipbuilders Limited. This is a natural extension of strategic bilateral cooperation shared between India and France in the field of underwater defence & deterrence and in line with Naval Group’s continued commitment towards
the Government’s ‘Atmanirbhar Bharat’ policy.
Defence Minister Rajnath Singh has complimented DRDO, Indian Navy and MDL for taking Atmanirbhar Bharat initiative forward in underwater domain. Secretary Department of Defence R&D and Chairman DRDO Dr Samir V Kamat also congratulated NMRL, Indian Navy, MDL and Naval Group France for this strategic partnership.

More like this

IAF’s Air-Space Test

The Indian Air Force enters its 94th anniversary year...

EyeROV Delivers India’s First Military-Grade ROV to Indian Navy

Kochi: In a country-first milestone, Kerala-based marine robotics and...

India Targets Homegrown AMCA Engine

Koraput, Odisha. India’s ambition to build an advanced stealth...

AKSI Aerospace Unveils Combat Drone ‘Agni Kalash’ Intended for Long-Range Precision-Strike Missions

Vijayawada (AP) - Hyderabad-based AKSI Aerospace Group introduced the...

Hical Technologies Signs MoU with Safran Aerosystems to Explore the Creation of a Joint Venture for Manufacturing of Complex Rafale Systems in India

Bengaluru. Hical Technologies, a Bengaluru-based precision electromechanical manufacturer serving global...

Israel Fears China’s New Missile YJ-20 May Find its Way to Enemies

Tel Aviv: On July 29, 2026, the Chinese CCTV...

Romania Orders 12 Airbus H225M Multirole Military Helicopters

Marignane, France. The government of Romania has signed a...
Indian Navy Special Edition 2025spot_img