List of submarines of the Indian Navy

This is a list of known submarines of the Indian Navy, grouped by class, and pennant numbers within the class.[1]

In service

This section is an excerpt from List of active Indian Navy ships § Submarine fleet.[edit]
Nuclear ballistic missile submarine (3)
Class Image Boat No. Disp. (t) Comm. Origin Homeport Note
Arihant class
INS ArihantS26,0002016 India VisakhapatnamFirst ever indigenously-built class of nuclear ballistic missile submarines.[2]
INS ArighaatS32024
INS Aridhaman S4 7,000 2026
Attack submarine (16)
Class Image Boat No. Disp. (t) Comm. Origin Homeport Note
Kalvari class
INS KalvariS211,8002017 France
 India		 MumbaiIndian-specific variant of the Scorpène-class submarine.[3]
INS KhanderiS222019 Karwar[4]
INS KaranjS232021
INS VelaS242021 Mumbai
INS VagirS252023
INS VagsheerS262025
Sindhughosh class
INS SindhurajS573,0761987 Soviet Union
 Russia		 MumbaiIndian-specific variant of the Kilo-class submarine (P.877).[5]
INS SindhuratnaS591988
INS SindhukesariS601988 Visakhapatnam
INS SindhukirtiS611989
INS SindhuvijayS621991
INS SindhurashtraS652000
Shishumar class
INS ShishumarS441,8501986 West Germany
 India		 MumbaiIndian-specific variant of the Type 209/1500 submarine.[6]
INS ShankushS451986
INS ShalkiS461992
INS ShankulS471994

Under construction

Class Picture Type Boats Origin Displacement Status Note
Nuclear submarines (11-13)
S5 class Ballistic missile submarine (SSBN) 4  India 13,500 tonnes Under construction (2) Project was approved with a budget of ₹10,000 crore (US$1.0 billion).[7]Construction of two hulls are underway as of December 2025.[8][9]

Planned

Class Picture Type Boats Origin Displacement Status Note
Nuclear submarines (11-13)
Project 77 Attack submarine (SSN) 6  India 10,000 tonnes 6 planned 6 boats are planned and are expected to be constructed at the Shipbuilding Centre (SBC) at Visakhapatnam.[10] Project clearance was granted by the Cabinet Committee on Security in February 2015.[11]
Akula class Attack submarine (SSN) 1  Russia 12,770 tonnes 1 planned In March 2019, India signed a US$3 billion agreement with Russia to lease another Akula-class submarine, which is expected to join the Indian Navy by 2026.[12]
Diesel-electric submarines (21)
Project 75(I) Class Attack submarine (SSK) 6  India 3,000-4,000t 6 approved It had been approved by the government worth ₹43,000 crore in June 2020. The chosen submarine is an modified design of the German Type 214 submarine.[13]
Kalvari class Attack submarine 3 India India/France France >2,000t 3 planned New plug module that would give the submarine AIP capability. These units will be larger in size and it is planned that all previous units will be upgraded during their next overhaul cycle.[14]
Project 76 class Attack submarine 12  India 3,000t 12 planned Approval from the Cabinet Committee on Security (CCS) due as of February 2025.[15]

Decommissioned

INS Kursura museum ship
INS Chakra (S71), a leased Soviet Charlie-class nuclear submarine
This section is an excerpt from List of historical ships of the Indian Navy § Submarines.[edit]
Boat Pennant Class Commissioned Decommissioned Fate Notes
Nuclear Submarines
INS Chakra S71 Charlie class 1 September 1987 Returned to Soviet Union in January 1991 Scrapped in Russia. Leased from the Soviet Union.
INS Chakra S71 Akula class 4 April 2012 Returned to Russia June 2021 Returned to Russia before 10-year lease completed, due to extensive damage suffered in service.[16][17]
Conventional Submarines
INS Khanderi S22 Kalvari class 6 December 1968 18 October 1989[18] Scrapped but sail fin on display
INS Kalvari S23 Kalvari class 8 December 1967 31 May 1996[18] Scrapped but sail fin on display
INS Kursura S20 Kalvari class 18 December 1969 27 September 2001[18] Converted to Museum Ship at Ramakrishna Mission Beach, Visakhapatnam.
INS Karanj S21 Kalvari class 4 September 1969 1 August 2003[18]
INS Vagsheer S43 Vela class 26 December 1974 30 April 1997[18]
INS Vagir S41 Vela class 3 November 1973 7 June 2001[18]
INS Vela S40 Vela class 31 August 1973 25 June 2010
INS Vagli S42 Vela class 10 August 1974 9 December 2010 To be preserved as a museum in Tamil Nadu.[19]
INS Sindhurakshak S63 Sindhughosh class 24 December 1997 6 March 2017 Sunk Exploded and sank on 14 August 2013. After being salvaged in June 2014,[20] she was decommissioned in March 2017 and disposed of at sea that June.[21]
INS Sindhuvir S58 Sindhughosh class 26 August 1988 March 2020 Transferred to Myanmar Navy
INS Sindhudhvaj S56 Sindhughosh class 12 June 1987 16 July 2022 Decommissioned
INS Sindhughosh S55 Sindhughosh class 30 April 1986 19 December 2025 [22]

See also

Indian navy related lists
Indian military related

Notes

References

  1. ↑ "Submarines active". Indian Navy. Archived from the original on 19 August 2013. Retrieved 1 January 2013.
  2. ↑ Pubby, Manu. "India's first nuclear submarine INS Arihant ready for operations, passes deep sea tests". The Economic Times. Retrieved 9 September 2021.
  3. ↑ Shukla, Tarun (14 December 2017). "INS Kalvari, India's first Scorpene submarine, commissioned by Narendra Modi". Livemint. Archived from the original on 2 March 2018.
  4. ↑ "Raksha Mantri Shri Rajnath Singh undertakes sea sortie on stealth submarine 'INS Khanderi' at Karwar". Press Information Bureau. 27 May 2022. Retrieved 19 September 2024.
  5. ↑ "Submarines of Indian Navy". Archived from the original on 19 June 2009. Retrieved 5 August 2009.
  6. ↑ "Submarines of Indian Navy". Archived from the original on 19 June 2009. Retrieved 6 August 2009.
  7. ↑ Unnithan, Sandeep (7 December 2017). "From India Today magazine: A peek into Indias top secret and costliest defence project, nuclear submarines". India Today. Retrieved 12 December 2017.
  8. ↑ Singh, Arjun Dev (29 December 2025). "CHAKRA EXCLUSIVE: India's fourth SSBN sails out for sea trials". Chakranewz. Retrieved 30 December 2025.
  9. ↑ Militar, Redaccion Zona (30 December 2025). "India is reported to have begun sea trials of the fourth of its new Arihant-class nuclear-powered ballistic missile submarines". Zona Militar. Retrieved 31 December 2025.
  10. ↑ "Move to fast-track two submarine projects gathers steam". Archived from the original on 23 December 2015.
  11. ↑ "Rs 1.2 lakh crore nuclear submarine project closer to realisation".
  12. ↑ "Russia to lease nuclear submarine to Indian Navy in $3 billion deal". The Week. Press Trust of India. 8 March 2019.
  13. ↑ "India, Germany close to signing $8 bn P75I submarine deal, pact likely by March-end". The Times of India. 31 January 2026. ISSN 0971-8257. Retrieved 26 March 2026.
  14. ↑ Menon, Adithya Krishna (14 July 2023). "India to Procure Rafale M, More Scorpene Submarines". Naval News. Retrieved 10 August 2023.
  15. ↑ Peri, Dinakar (22 February 2025). "DRDO indigenous submarine proposal to go for CCS approval in couple of months; eight years for first sub". The Hindu. ISSN 0971-751X. Retrieved 26 March 2026.
  16. ↑ "Explosion forced Indian Navy to return nuclear submarine to Russia". The Week. 9 June 2021.
  17. ↑ "Navy's Only Nuclear Attack Submarine Returns To Russia Before Lease Expires". NDTV.com. Retrieved 9 June 2021.
  18. 1 2 3 4 5 6 Hiranandani G.M, Transition to Eminence - The Indian Navy 1976 – 90; pub Lancer New Delhi 2005, ISBN 978-81-7062-266-6
  19. ↑ "Sea Dredging Mooted to Take Sub to Mamallapuram Shores". The New Indian Express. 6 August 2014. Archived from the original on 26 August 2014. Retrieved 23 August 2014.
  20. ↑ Manish K Pathak (7 June 2014). "INS Sindhurakshak finally brought to surface". DNA. Retrieved 20 June 2014.
  21. ↑ Rajput, Rashmi (5 September 2017). "Navy sinks 'graveyard' INS Sindhurakshak". The Indian Express. Retrieved 15 October 2017.
  22. ↑ @IN_WNC (19 December 2025). "INS Sindhughosh, the lead submarine of her class in service with the #IndianNavy, was decommissioned at sunset on 19 Dec 25..." (Tweet). Retrieved 20 December 2025 – via X (formerly Twitter).
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