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Diving Support Craft

This article is about the Indian Navy ship class. For the type of ship, see Diving support craft.

DSC A20 at sea
Class overview
NameDSC class
BuildersTitagarh Naval Systems[1]
OperatorsIndian Navy
Cost
  • ₹174.77 crore (equivalent to ₹196 crore or US$20 million in 2023) for five ships
  • ₹30 crore (US$3.1 million) per ship (FY 2023)
Building5
Completed1
Active1
General characteristics
TypeDiving support craft
Displacement390 t (380 long tons; 430 short tons)
Length30 m (98 ft)
Beam12 m (39 ft)
Draught<2.5 m (8 ft 2 in)
Speed12 kn (22 km/h; 14 mph)
ComplementDiving team
Armament1 × 12.7 mm SRCG

Diving Support Craft (DSC) are a series of 5 small-category diving support vessels being built for the Indian Navy by Titagarh Rail Systems Limited.

History

The ships are designed and equipped with state-of-the-art apparatus to support diving operations in coastal under water environment. The vessels are designed to meet the mission needs of Command Clearance Diving Teams (CCDTs). A contract worth ₹174.77 crore (equivalent to ₹196 crore or US$20 million in 2023) was signed between Titagarh Rail Systems Limited (TRSL) and the Indian Navy on 12 February 2021.[2][3][4][5] Diving support vessels are important for both military and commercial diving. They are used for underwater work such as inspecting and maintaining pipelines, well-heads, and mobile platforms. They will be used for providing diving assistance to all ships inside and close to harbour for underwater repair, maintenance and salvage.[6]

The ships have been indigenously designed and built in accordance with the naval rules and regulations of the Indian Register of Shipping (IRS),[7] and the systems were tested at Naval Science and Technological Laboratory (NSTL) of DRDO.[8] They are 30 m long catamaran hull ships,[9] with a displacement of around 380 tons.[10] The ships are designed with a two-man Re-Compression Chamber (RCC).[11] About 70% of main and auxiliary equipment are sourced from indigenous contractors.

The first ship, DSC A20, was delivered on 18 September 2025.[10][12][13] DSC A20 was commissioned on 16 December 2025 at Naval Base, Kochi which will also be its homeport under the Southern Naval Command. It was the 11th ship of the Navy commissioned in the year.[14][15][11]

Ships in the class

Pennant Yard Number Laid Down Launched Delivered Commissioned Homeport Status
 Indian Navy
A20 325 27 January 2022[16] 31 August 2023[8] 16 September 2025[10] 16 December 2025[17] Kochi Active
A21 326 5 May 2022[4] 30 October 2023[6][9] Launched
A22 327 12 August 2022[18] 13 September 2025[19]
A23 328 17 January 2023[20] 19 April 2026[1]
A24 329 31 August 2023[8] 1 August 2026[7]

See also

References

  1. ^ a b "Titagarh Rail Systems arm launches fourth diving support craft A23 for Indian Navy - CNBC TV18". CNBCTV18. 19 April 2026. Retrieved 20 April 2026.
  2. ^ "Titagarh Rail Systems rolls out new diving support craft for Indian Navy". The Indian Express. 1 September 2023. Retrieved 1 September 2024.
  3. ^ "Titagarh Rail Systems launches diving support craft for Indian Navy". The Economic Times. 31 August 2023. ISSN 0013-0389. Retrieved 1 September 2024.
  4. ^ a b "Keel Laying of Second Ship – Diving Support Craft At m/s Titagarh Wagons Ltd, Kolkata". Press Information Bureau. 5 May 2022. Retrieved 1 September 2024.
  5. ^ "Indian Navy Signs Contract for Acquisition of Five Diving Support Craft (DSC)". Press Information Bureau. 12 February 2021.
  6. ^ a b "Launch of DSC A 21 (Yard 326) second ship of 05 X Diving Support Craft (DSC) project on 30 Oct 23 at M/s Titagarh Rail Systems Limited (TRSl), Kolkata". indiannavy.nic.in. Archived from the original on 7 November 2023.
  7. ^ a b "Launch of DSC A24 (Yard 329) - fifth ship of Diving Support Craft (DSC) project" (Press release). Press Information Bureau. 1 August 2026. Retrieved 2 August 2026.
  8. ^ a b c "LAUNCH OF 'DSC A 20 (YARD 325)' FIRST SHIP OF 05 x DIVING SUPPORT CRAFT (DSC) PROJECT 31 AUG 23 AT M/S TITAGARH RAIL SYSTEMS (TRSL), KOLKATA". Press Information Bureau. 31 August 2023. Retrieved 1 September 2024.
  9. ^ a b "LAUNCH OF DSC A 21 (YARD 326) SECOND SHIP OF 05 x DIVING SUPPORT CRAFT (DSC) PROJECT ON 30 OCT 23 AT M/S TITAGARH RAIL SYSTEMS LIMITED (TRSL), KOLKATA". Press Information Bureau. 30 October 2023. Retrieved 1 August 2024.
  10. ^ a b c "Delivery of DSC A20 (Yard 325), first ship of 05 × Diving Support Craft to Indian Navy" (Press release). Press Information Bureau. 17 September 2025. Retrieved 17 September 2025.
  11. ^ a b "Naval diving support craft DSC A20 commissioned at Kochi to boost underwater capabilities". The Economic Times. 16 December 2025. ISSN 0013-0389. Retrieved 16 December 2025.
  12. ^ Bahtić, Fatima (18 September 2025). "Indian Navy welcomes first indigenously made diving support craft". Naval Today. Retrieved 19 September 2025.
  13. ^ "Indian Navy Inducts First Indigenously-Built Diving Support Craft 'DSC A20' from Titagarh Rail Systems". indianmasterminds.com. 18 September 2025. Retrieved 19 September 2025.
  14. ^ Singh, Mayank (16 December 2025). "Indian Navy commissions first of the five Diving Support Craft to boost operational efficiency". The New Indian Express. Retrieved 16 December 2025.
  15. ^ "Indian naval diving support craft A20 commissioned". The Hindu. 16 December 2025. ISSN 0971-751X. Retrieved 17 December 2025.
  16. ^ "KEEL LAYING OF FIRST OF CLASS – DIVING SUPPORT CRAFT AT M/S TITAGARH WAGONS LTD, KOLKATA". Press Information Bureau. 28 January 2022. Retrieved 1 September 2024.
  17. ^ "Indian Navy to commission first indigenous Diving Support Craft 'DSC A20'" (Press release). Press Information Bureau. 11 December 2025. Retrieved 12 December 2025.
  18. ^ "KEEL LAYING OF THIRD SHIP – DIVING SUPPORT CRAFT AT M/S TITAGARH WAGONS LTD, KOLKATA". Press Information Bureau. 12 August 2022. Retrieved 1 September 2024.
  19. ^ "Launch of DSC A22 (Yard 327), third ship of 05 x Diving Support Craft (DSC) project" (Press release). Press Information Bureau. 13 September 2025. Retrieved 14 September 2025.
  20. ^ "Keel Laying of Fourth Ship – Diving Support Craft At M/S Titagarh Wagons Ltd, Kolkata". Press Information Bureau. 17 January 2023. Retrieved 1 September 2024.

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