Prime Minister of India has commissioned India's first indigenous Scorpene-class submarine Kalvari into the Navy at Mumbai's Naval Dockyard.
The submarines of Scorpene class are propelled by diesel-electric engines and Torpedo is mounted as a primary weapon.
INS Kalvari is built by Mazagon Dock Limited (MDL) with assistance and technology transfer from France’s DCNS.
The submarine is named after the dreaded tiger shark.
It also features an additional air-independent propulsion (AIP) system.
Conventional diesel-electric submarines have to surface every few days to get oxygen to recharge their batteries. With AIP systems, they can stay submerged for much longer periods.
It weighs 1500 tonnes and can go up to depths of 300m.
It will have both anti-surface and anti-submarine warfare.
It is first of the six submarines developed by the French DCNS under Project 75.
INS Kalvari is followed by INS Khanderi which is currently undergoing sea trails and expected to be inducted by the end of 2020.