INS Arighat

	An artist's impression of an Arihant-class submarine
History
India
Name	INS Arighat
Builder	Shipbuilding Centre (SBC), Visakhapatnam, India
Laid down	2011
Launched	19 November 2017
Commissioned	2023 (Scheduled)
Status	Sea trials completed
General characteristics
Class and type	Arihant-class ballistic missile submarine
Type	Ballistic missile submarine
Displacement	Surface: classified
Length	300+ ft (actual length is classified)
Beam	Classified
Draft	Classified
Installed power	1 x CLWR-B1 Compact Light-water reactor, 83 MW
Propulsion	1 × propeller shaft, nuclear propulsion
Speed	Surfaced: 12–15 knots (22–28 km/h) Submerged: 24 knots (44 km/h)
Range	Unlimited except by food supplies
Endurance	Unlimited except by food supply and maintenance
Test depth	Between 300 m (980 ft) to 400 m (1,300 ft)
Sensors and ; processing systems	USHUS sonar; Panchendriya unified submarine sonar, control system and underwater communication system ;
Armament	12 × K15 SLBM (750 km or 470 mi range) or 4 × K-4 SLBM (3,500 km or 2,200 mi range) ; Torpedoes: 6 × 21" (533 mm) torpedo tubes – est 30 charges (torpedoes, missiles or mines);

INS Arighat is an upgraded variant of the Arihant-class submarine. It is the second nuclear-powered ballistic missile submarine being built by India under the Advanced Technology Vessel (ATV) project to build nuclear submarines at the Ship Building Centre in Visakhapatnam. It has the code name S3.

The submarine was quietly launched in 2017 and little has been publicly announced about its capabilities and current status. The submarine was originally known as INS Aridhaman but was renamed INS Arighat upon its launch. According to reports released in early 2021, she was to be commissioned in late 2021 alongside INS Vikrant.

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