INS Sindhuvijay

History
India
Name	INS Sindhuvijay
Launched	27 July 1990
Commissioned	8 March 1991
Status	Active
General characteristics
Class & type	Sindhughosh-class submarine
Displacement	2325 tons surfaced 3076 tons dived
Length	72.6 m (238 ft)
Beam	9.9 m (32 ft)
Draught	6.6 m (22 ft)
Propulsion	2 × 3,650 hp (2,720 kW) diesel-electric motors 1 × 5,900 hp (4,400 kW) motor 2 × 204 hp (152 kW) auxiliary motors 1 × 130 hp (97 kW) economic speed motor
Speed	Surfaced; 11 knots (20 km/h)[1] Snorkel Mode; 9 knots (17 km/h) Submerged; 19 knots (35 km/h)[1]
Range	Snorting: 6,000 mi (9,700 km) at 7 kn (13 km/h) Submerged: 400 miles (640 km) at 3 knots (5.6 km/h)
Endurance	Up to 45 days with a crew of 52
Test depth	Operational Depth; 240 m (790 ft) Maximum Depth; 300 m (980 ft)
Complement	52 (incl. 13 Officers)
Armament	9M36 Strela-3 (SA-N-8) SAM launcher Klub-S (3M-54E) ASCM Type 53-65 passive wake homing torpedo TEST 71/76 anti-submarine, active-passive homing torpedo 24 DM-1 mines in lieu of torpedo tube

INS Sindhuvijay (S62) (lit. 'Conqueror of the Sea')^[2][3] is a Sindhughosh-class diesel-electric submarine of the Indian Navy.^[4] The submarine was commissioned at Riga in the then Soviet Union.^[5]

2025 Refit

As reported on 3 September 2025, the submarine is expected to undergo a refit at the Hindustan Shipyard. While the Navy has acquired the Acceptance of Necessity (AoN) from the Defence Acquisition Council of the Ministry of Defence, the contract finalisation is expected to be completed within two or three weeks. Given that all the procedures are completed on schedule, the submarine is expected to begin its refit by the end of the year. The refits will include hull repair, equipment overhauling, upgrading sensors and weaponry, extending the submarine's life as well as enhancing combat readiness of the vessel.^[5]

References

1. "Large diesel-electric submarine Project 636". roe.ru.
2. "विजय". 17 March 2023 – via Wiktionary.
3. "सिन्धु". 8 April 2023 – via Wiktionary.
4. "Submarines of Indian Navy". Archived from the original on 19 June 2009. Retrieved 5 August 2009.
5. Singh, Mayank (3 September 2025). "INS Sindhuvijay to undergo mid-life refit at Hindustan Shipyard". The New Indian Express. Retrieved 3 September 2025.