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

In service

Class Type Boats Origin Displacement Note
Nuclear-powered submarines (2)
Arihant class Ballistic missile submarine (SSBN) INS Arihant (S2)
INS Arighat (S3)		 India 6,000 tonnes Powered by a 83 MW pressurized light-water reactor using enriched uranium. First prototype of the ATV project and experimental protoype.
Diesel-electric submarines (16)
Kalvari class (Scorpène-class) Attack submarine INS Kalvari (S21)
INS Khanderi (S22)
INS Karanj (S23)
INS Vela (S24)
INS Vagir (S25)INS Vaghsheer (S26)[2]		 France
India		 1,775 tonnes French design. India got full technology transfer and license for up to 12 units produced locally in Indian shipyards.
Shishumar class (Type 209 submarine) Attack submarine INS Shishumar (S44)
INS Shankush (S45)
INS Shalki (S46)
INS Shankul (S47)		 West Germany
India		 1,850 tonnes Shishumar and Shankush scheduled for mid-life refit in 2020-21.[3]
Sindhughosh class (Kilo-class) Attack submarine INS Sindhughosh (S55)
INS Sindhuraj (S57)
INS Sindhuratna (S59)
INS Sindhukesari (S60)
INS Sindhukirti (S61)
INS Sindhuvijay (S62)
INS Sindhurashtra (S65)		 Soviet Union
Russia		 3,076 tonnes Sindhuraj and Sindhukesari currently undergoing mid-life refit. Sindhughosh scheduled for refit in 2020.[3]

Under construction

Class Picture Type Boats Origin Displacement Status
Nuclear submarines (2)
Arihant class Ballistic missile submarine (SSBN)
S4 (code name)
S4* (code name)		 India
7,000 tonnes (S4 and S4*)
S4 launched and undergoing fit-out
S4* hull under construction[4][5]
Diesel-electric submarines (1)
Kalvari class Attack submarine INS Vagsheer (S26) France
India		 above 2000 tonnes Three more units ordered with an 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.[6]

Planned

Class Picture Type Boats Origin Displacement Status Note
Nuclear submarines (10)
S5 class Ballistic missile submarine (SSBN) 3  India 13,500 tonnes 3 planned Project was approved with a budget of ₹10,000 crore (US$1.3 billion).[7][8][9]
Project 75 Alpha Attack submarine (SSN) 6  India 6,000 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) 0  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 2025.[12]
Diesel-electric submarines (9)
Project 75I-class submarine Attack submarine (SSK); possibly Cruise missile submarine (SSG) 6  India Unspecified 6 planned It had been approved by the government worth ₹43000 crore in June 2020. However due to unrealistic requirements in the RFI, vendors have pulled out of the project as of 2022. It is likely to be scrapped and alternative ways of procurement looked at.
kalvari class Attack Submarine 3 IndiaFrance Above 2000 tonne 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.[6]

Decommissioned

Class Ships Origin Commissioned Decommissioned Displacement[lower-alpha 1] Note
Nuclear-powered attack submarines (2)
Charlie I-class INS Chakra (K-43) Soviet Union 1 September 1987 January 1991 5,000 tonnes Leased for 10 years but returned to Soviet Union in 1991 after 3 years. Decommissioned and scrapped 1992.
Improved Akula I-class INS Chakra (S71) Russia 4 April 2012 June 2021 8,140 tonnes Under a 10-year lease from Russia since 2012; returned 2021.
Diesel-electric submarines (10)
Kalvari class (Foxtrot-class) INS Kalvari (S23)
INS Khanderi (S22)
INS Karanj (S21)
INS Kursura (S20)
 Soviet Union 8 December 1967
6 December 1968
4 September 1969
18 December 1969
 31 May 1996
18 October 1989
1 August 2003
27 September 2001
 2,475 tonnes -Sail on display
-Sail on display
-Unknown
-As a museum
Vela class (Foxtrot-class) INS Vela (S40)
INS Vagir (S41)
INS Vagli (S42)
INS Vagsheer (S43)
 Soviet Union 31 August 1973
3 November 1973
10 August 1974
26 December 1974
 25 June 2010
7 June 2001
9 December 2010
30 April 1997
 2,475 tonnes -Unknown
-Unknown
-To be preserved as a museum
-Unknown
Sindhughosh class (Kilo-class) INS Sindhurakshak (S63)
INS Sindhuvir (S58)
INS Sindhudhvaj (S56)		 Russia

Soviet Union

 24 December 1997
26 August 1988		 6 March 2017
March 2020
16 July 2022		 3,076 tonnes -Decommissioned /sunk after accident/salvage
-Transferred to Myanmar Navy.
INS Chakra (S71), a leased Soviet Charlie-class nuclear submarine.
INS Kursura museum ship

See also

Indian navy related lists
Indian military related

Notes

  1. ↑ Displacement when submerged

References

  1. ↑ "Submarines active". Indian Navy. Archived from the original on 19 August 2013. Retrieved 1 January 2013.
  2. ↑ "INS Vagsheer, the sixth Scorpene Submarine of Project-75, launched in Mumbai. All you need to know". www.livemint.com. 20 April 2022. Retrieved 20 April 2022.
  3. 1 2 Nair-Ghaswalla, Amrita (7 February 2018). "Six Indian Navy submarines to be upgraded". The Hindu. Retrieved 11 February 2018.
  4. ↑ Bedi, Rahul (11 December 2017). "India quietly launches second SSBN". IHS Jane's Defence Weekly. Archived from the original on 12 December 2017.
  5. ↑ Bedi, Rahul (30 December 2021). "India Quietly Launches Third Arihant-Class Nuclear-Powered Submarine: Report". The Wire.
  6. ↑ Menon, Adithya Krishna (14 July 2023). "India to Procure Rafale M, More Scorpene Submarines". Naval News. Retrieved 10 August 2023.
  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. ↑ Diplomat, Saurav Jha, The. "India's Undersea Deterrent". The Diplomat. Retrieved 19 May 2019.{{cite web}}: CS1 maint: multiple names: authors list (link)
  9. ↑ Roblin, Sebastien (27 January 2019). "India is Building a Deadly Force of Nuclear-Missile Submarines". The National Interest. Retrieved 2 September 2019.
  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.
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