Kalvari-class Submarine (1967)

The Kalvari-class submarines were the first submarines inducted into the Indian Navy. They were variants of the early Soviet Foxtrot-class submarines. Four of the class served in the Indian Navy. Four additional variants of the later Foxtrot class were inducted as the Vela-class.

INS Kursura has been preserved as a museum on Ramakrishna Mission Beach in Visakhapatnam. The sail of the lead vessel, INS Kalvari is also on display at the Visakhapatnam city museum.

Unit Run

 * INS Kalvari (S23)
 * INS ''Khanderi' (S22)
 * INS Karanj (S21)
 * INS Kursura (S20)

Related Development

 * Foxtrot-class submarine
 * Vela-class submarine