Indigenous Diving Support Craft DSC A20

Commissioning Milestone

Indigenous Diving Support Craft DSC A20: The Indian Navy will commission DSC A20, its first indigenous Diving Support Craft, on 16 December 2025 at Kochi. The vessel will be inducted under the Southern Naval Command, marking a new operational capability in underwater and coastal missions.

The commissioning ceremony will be presided over by Vice Admiral Sameer Saxena, Flag Officer Commanding-in-Chief of the Southern Naval Command. This induction reflects India’s growing competence in specialised naval platforms.

First of a New Indigenous Class

DSC A20 is the lead vessel of a five-ship class of Diving Support Craft. These vessels are being constructed by Titagarh Rail Systems Limited (TRSL), Kolkata, fully within India’s industrial ecosystem.

The class is designed to address the Navy’s expanding requirements in coastal and harbour-based underwater operations. Indigenous design ensures better adaptability to Indian maritime conditions.

Static GK fact: The Indian Navy functions under three operational commands—Western, Eastern, and Southern—each responsible for distinct maritime zones.

Core Operational Capabilities

The primary role of DSC A20 is to provide comprehensive support for underwater missions. It is equipped for diving support, underwater inspection, and maintenance of naval assets.

The craft can assist in salvage operations, search missions, and coastal security tasks. Its systems meet stringent naval safety and operational standards for prolonged diving missions.

Advanced Catamaran Design

A defining feature of DSC A20 is its catamaran hull form. This design offers superior stability during complex underwater tasks and enhances crew safety during diving operations.

The hull configuration also provides a larger deck area for diving equipment and support systems. With a displacement of around 390 tonnes, the vessel is optimised for coastal and harbour environments.

Static GK Tip: Catamaran hulls are preferred for support vessels due to reduced roll motion and better platform stability.

Scientific Validation and Compliance

The craft underwent extensive hydrodynamic analysis and model testing at NSTL, Visakhapatnam. These tests validated performance, safety, and operational reliability.

DSC A20 has been constructed in strict accordance with the Naval Rules and Regulations of the Indian Register of Shipping (IRS). This ensures compliance with national maritime safety standards.

Strengthening Aatmanirbhar Bharat

The induction of DSC A20 strongly aligns with Aatmanirbhar Bharat and Make in India initiatives. It highlights effective collaboration between the Indian Navy, domestic shipbuilders, and national research institutions.

The project demonstrates India’s capability to design and deliver technologically advanced naval platforms without foreign dependence. It also supports long-term self-reliance in defence manufacturing.

Deployment and Operational Role

After commissioning, DSC A20 will be based at Kochi under the Southern Naval Command. It will support training of naval divers, emergency underwater responses, and routine maintenance tasks.

The vessel significantly enhances the Navy’s preparedness for both peacetime operations and contingencies in coastal waters.

Static GK fact: Kochi hosts one of the oldest naval bases in India and serves as a key training hub for the Indian Navy.

Static Usthadian Current Affairs Table

Indigenous Diving Support Craft DSC A20: