INS Arighat

INS Arighat is the second. It is the second nuclear-powered ballistic missile submarine being built by India. It is being built under the Advanced Technology Vessel (ATV) project to build nuclear submarines at the Ship Building Centre in Visakhapatnam. This submarine will have double the number of missile hatches than its predecessor INS Arihant giving it the ability to carry more missiles. This will have a more powerful reactor than its predecessor.

The submarine was originally assumed to be named INS Aridhaman, but when launched it was named INS Arighat.

Description
The boat will have one seven-blade propeller powered by a pressurised water reactor. She can achieve a maximum speed of 12 - 15 kn when on surface and 24 kn when submerged.

The submarine has eight launch tubes in its hump. She can carry up to 24 K-15 Sagarika missiles (each with a range of 750 km), or eight of the under-development K-4 missiles (with a range of 3500 km).

Status
Arighat is being built in Visakhapatnam. She is currently being outfitted. In January 2012, it was announced that she would be launched in late 2012 or early 2013. In December 2014 it was reported that work on the second nuclear sub-reactor had begun and possibly by early 2016 she will be launched. In October 2017, it was reported that she would be launched in November-December and would undergo outfitting. The launch took place on 19 November. Harbor trials and sea trials are expected to last for 2 years and commissioning is expected sometime in 2019.