INS Kalvari is a Scorpene-class submarine and is the first of six Submarines built under Project 75 by Mazagon Dock Shipbuilders Limited for the Indian Navy. The submarine was commissioned on December 14, 2017. The Scorpene-class submarines are a class of diesel-electric attack submarines and are considered one of the most advanced conventional submarines in the world.

INS Kalvari, named after the first Foxtail fish, plays a crucial role in enhancing the Indian Navy's underwater capabilities. These submarines are designed to operate in all theatres, with the ability to undertake various types of missions such as anti-surface warfare, anti-submarine warfare, and intelligence gathering.

It's advisable to check official and recent sources for the latest updates and information about Ins Kalvari or any other naval vessel.