India has added another submarine to its fleet on Thursday with prime minister Narendra Modi dedicating 'INS Kalvari' to the nation at a function in Mumbai.
Here is all you need to know about India's first indigenously-built Scorpene-class submarine:
• Kalvari is named after the dreaded Tiger Shark, a deadly deep sea predator of the Indian Ocean.
• The submarine is built by the Mazagaon Dockyard Ltd under its Project 75, with technological collaboration from Naval Group, France.

• It has superior stealth features such as advanced acoustic silencing techniques, low radiated noise levels, hydro-dynamically optimized shape.
• The sub can launch a crippling attack on the enemy using precision guided weapons.
• Both torpedoes and tube launched anti-ship missiles can be launched from underwater or on surface.
• Can be used for multifarious types of missions like anti-surface warfare, anti-submarine warfare, intelligence gathering, mine laying and area surveillance.
• The first Kalvari, commissioned in December 1967 was also the first submarine of the Indian Navy. It was decommissioned on May 31, 1996 after almost 30 years of service.
(With inputs from IANS)
Read: Latest Nation News | Two Jaipur teachers suspended for errors in passage on PM Modi