SF Prep Notes

DSC A20, first of five indigenous Diving Support Craft, delivered to Indian Navy

DSC A20, the first indigenously designed and built Diving Support Craft, was delivered to the Indian Navy by Titagarh Rail Systems Ltd at Kolkata on 16 September 2025.

Summary

DSC A20 (Yard 325), the first indigenously designed and constructed Diving Support Craft, was delivered to the Indian Navy by Titagarh Rail Systems Ltd (TRSL), Kolkata, on 16 September 2025. It is the first of five such craft under a contract signed between the Ministry of Defence and TRSL on 12 February 2021. The craft is designed for diving operations in coastal waters and has a catamaran hull with a displacement of about 380 tons. Its hydrodynamic analysis and model testing were done at the Naval Science and Technological Laboratory (NSTL), Visakhapatnam.

Key facts

Vessel
DSC A20 (Yard 325), first of 5 Diving Support Craft
Builder
Titagarh Rail Systems Ltd, Kolkata
Delivered
16 September 2025, Kolkata
Contract
12 February 2021
Design
Catamaran hull, ~380 tons; model testing at NSTL Visakhapatnam

Practice MCQs 1 questions

Q1 Advanced

Which company delivered DSC A20, the first indigenous Diving Support Craft, to the Indian Navy in September 2025?

Show answer

Correct answer: B — Titagarh Rail Systems Ltd

DSC A20 was delivered by Titagarh Rail Systems Ltd (TRSL), Kolkata, on 16 September 2025, the first of five craft contracted in February 2021.

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