INS Kalvari (S23)
| History | |
|---|---|
| India | |
| Name | INS Kalvari | 
| Namesake | "Kalvari" a deep sea tiger shark. | 
| Launched | 15 April 1967 | 
| Commissioned | 8 December 1967 | 
| Decommissioned | 31 May 1996 | 
| Identification | S23 | 
| Fate | Decommissioned | 
| Status | Hull scrapped, fin preserved | 
| General characteristics | |
| Class & type | Kalvari-class submarine | 
| Displacement | 
 | 
| Length | 91.3 m (299 ft 6 in) | 
| Beam | 7.5 m (24 ft 7 in) | 
| Draught | 6 m (19 ft 8 in) | 
| Speed | 
 | 
| Range | 
 | 
| Test depth | 250 m (820 ft) | 
| Complement | 75 (incl 8 officers) | 
| Armament | 
 | 
INS Kalvari (S23) was the lead vessel of the Kalvari class of diesel-electric submarines of the Indian Navy. It was the first ever submarine inducted into service by the Indian Navy. The submarine was laid down on 27 December 1966 as Foxtrot-class submarine B-51 of the Soviet Navy by Novo-Admiralty at Galerniy Island, Leningrad.