New nuclear submarine boosts India’s sea-based defence
By Staff Writer
4 Apr 2026
India has inducted its third nuclear-powered submarine, INS Aridhaman, into the Navy, strengthening its defence capabilities. The submarine was commissioned in Visakhapatnam in the presence of Defence Minister Rajnath Singh.
INS Aridhaman follows earlier submarines INS Arihant and INS Arighaat. It is larger, quieter, and more advanced, making it harder to detect underwater. Being nuclear-powered, it can remain submerged for long periods without needing to surface.
The submarine can carry nuclear-capable missiles such as K-15 and K-4, allowing it to strike targets from long distances. This strengthens India’s nuclear triad, the ability to launch nuclear weapons from land, air, and sea.
It also improves India’s second-strike capability, meaning the country can respond even after a nuclear attack. Since submarines operate deep underwater, they are difficult to track and provide a secure way to maintain deterrence.
Built largely in India, INS Aridhaman highlights the country’s progress in indigenous defence technology. Experts say it will enhance India’s security, especially in the Indian Ocean region.
With this addition, India moves closer to maintaining continuous underwater patrols, strengthening its overall strategic defence.
