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INS Kalvari (S23) was the lead vessel of the Kalvari class of diesel-electric submarines of the Indian Navy.[1] It was the first ever submarine inducted into service by the Indian Navy.[2][3] 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.
| 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 and 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 |
|
The submarine was launched on 15 April 1967 and competed on 26 September 1967.[4][5] The submarine was commissioned by the Indian Navy on 8 December 1967 at Riga, Soviet Union. The Navy celebrates Submarine Day annually on 8 December to commemorate this occasion.[2][3] The submarine was decommissioned in 1992.[4]
Kalvari is the Malayalam word for tiger shark, a deep-sea predator in the Indian Ocean. The name symbolizes agility, strength and predatory power.[6][7] The tiger shark (Galeocerdo Cuvier) is a species of requiem shark which are found in tropical and temperate waters.[citation needed]
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