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Indian Navy will soon submit and put forward its request to procure three additional Kalvari Class Submarines equipped with an upgraded system like Air-independent propulsion (AIP), to the Prime Minister-led Cabinet Committee on Security (CCS) for project clearance.

French Naval Group has been roped in by the Mazagon Dock Shipbuilders and Indian Navy to act as a consultant to overlook the integration of the DRDO developed Fuel Cell based Air Independent Propulsion (AIP) System into all six Kalvari class submarines including three more that are to be ordered soon.

Mazagon Dock Shipbuilders had offered to develop three more Kalvari Class Submarines with higher indigenous content which was seconded by then Defence Minister Manohar Parrikar but the Navy was not too keen after 22,000 pages of top secret data of the submarine were leaked that included data on stealth capabilities of the submarines, frequencies at which intelligence is gathered, noise levels at various speeds, diving depths, range and endurance, magnetic and electromagnetic data, propeller noise, speed conditions for periscope use and torpedo launches.

Indian Navy’s fifth stealth Scorpene class Submarine INS Vagir was commissioned into the Indian Navy earlier this year at the Naval Dockyard Mumbai while the last and Sixth Scorpene class Submarine INS Vagsheer is presently undergoing sea trials and will be inducted later this year.

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