Arihant-class submarine
The sea leg of India's nuclear triad.
The interactive Arihant-class submarine model is still being sourced. Specifications and service history below are complete.
About the submarine
The Arihant-class is a class of ballistic missile submarines in service with the Indian Navy. They were developed under the Advanced Technology Vessel (ATV) project to design and build nuclear-powered submarines. The project is being seen as a black project. These vessels are classified as strategic strike nuclear submarines by India.
Service history
Built in secrecy at Visakhapatnam under the Advanced Technology Vessel programme begun in the 1980s, INS Arihant was commissioned in 2016 and completed her first deterrence patrol in 2018 — the moment India's nuclear triad became operational. A pressurised water reactor derived from Russian design work drives the boat; the missiles are Indian.
Commissioned hulls
INS ArihantS2
Commissioned 2016 · Shipbuilding Centre, Visakhapatnam
INS ArighaatS3
Commissioned 2024 · Shipbuilding Centre, Visakhapatnam
| Name | Pennant | Commissioned | Builder |
|---|---|---|---|
| INS Arihant | S2 | 2016 | Shipbuilding Centre, Visakhapatnam |
| INS Arighaat | S3 | 2024 | Shipbuilding Centre, Visakhapatnam |
Combat edge
Completed India's nuclear triad in 2018
83 MW pressurised water reactor
Carries K-15 and K-4 submarine-launched ballistic missiles
Operated for the Strategic Forces Command
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