Anti-Submarine Warfare Shallow Water Craft

	Androth at sea
Class overview
Name	Anti-Submarine Warfare Shallow Water Craft (ASW-SWC)
Builders	Cochin Shipyard (CSL); Garden Reach Shipbuilders & Engineers (GRSE) (in partnership with Kattupalli Shipyard of L&T);
Operators	Indian Navy
Preceded by	Kamorta-class by antecedence; Abhay-class by role;
Succeeded by	Next Generation Missile Vessels
Cost	₹12,622 crore (equivalent to ₹150 billion or US$1.8 billion in 2023) for 16 ships (FY 2020); ₹789 crore (equivalent to ₹929 crore or US$110 million in 2023) per ship (FY 2020);
Built	2020 – present
In commission	2025 – present
Planned	16
Building	11
Completed	5
Active	4
General characteristics
Type	Corvette
Displacement	GRSE: 900 tons; GRSE: 1490 tons (gross tonnage); CSL: 896—1,100 tons;
Length	GRSE: 77.6 metres (255 ft); CSL: 78 metres (256 ft);
Beam	GRSE: 10.5 metres (34 ft); CSL: 11.26 metres (36.9 ft);
Draught	GRSE: 2.7 metres (8.9 ft)
Propulsion	L&T Water-jet propulsion
Speed	25 knots (46 km/h)
Range	1,800 nautical miles (3,300 km) (at 14 knots (26 km/h)
Complement	57 (7 officers + 50 sailors)
Sensors &; processing systems	Combat Suite:; ASW Combat Suite (presumably the DRDO-developed IAC MOD 'C' combat suite); Sonar:; DRDO Abhay Hull-Mounted Sonar (HMS); Low Frequency Variable Depth Sonar (LFVDS); Management Systems:; Fire Control System (FCS); Integrated Platform Management System (IPMS); Automatic Power Management System (APMS); Battle Damage Control System (BDCS);
Armament	Anti-Submarine Warfare:; 1 × RBU-6000 anti-submarine rocket launcher; 2 × triple lightweight torpedo launchers (presumably the Advanced Light Weight Torpedo (ALWT)); Anti-submarine mines (launched from mine-laying rails); Guns:; 1 × Naval Surface Gun (30mm); 2 × OFT 12.7 mm M2 Stabilized Remote Controlled Gun;
Notes	Largest waterjet-powered vessels in the Indian Navy.

The Anti-Submarine Warfare Shallow Water Craft (ASW-SWC) is a class of anti-submarine warfare (ASW) water craft currently being built for the Indian Navy, by Cochin Shipyard (CSL) and Garden Reach Shipbuilders & Engineers (GRSE). They were conceived as a replacement to the ageing Abhay-class corvettes of the Indian Navy, and are designed to undertake ASW duties — including subsurface surveillance in littoral waters, search-and-attack unit (SAU) missions and coordinated anti-submarine warfare operations with naval aircraft. They were also designed to provide secondary duties – including defense against intruding aircraft, minelaying and search-and-rescue (SAR).

Equipped with sophisticated sensors and ordnance, the vessels also possess the capabilities to interdict and destroy subsurface targets — primarily hostile submarines, within the vicinity of coastal waters. A total of 16 vessels are being built for the Indian Navy, jointly by CSL and GRSE under the Make in India initiative. The Indian Navy plans to have all 16 vessels in active service by 2026.The corvettes are distinctly classified into two subclasses,the Arnala and Mahe class, each only having minor design differences. The Arnala-subclass was built by GRSE and L&T and are based with the Eastern fleet while the Mahe-subclass was built by CSL and are based with the Western Fleet..