New Nuclear Submarine Hub Coming Up in Andhra Pradesh by 2026

What happened?

India is set to operationalise a nuclear submarine and warship base near Rambilli village, Andhra Pradesh, by 2026. Part of Project Varsha, the base includes underground pens and tunnels to discreetly host nuclear submarines. Located 50 km from Visakhapatnam’s Eastern Naval Command, its first phase is nearly complete and will be expanded in stages. The site’s sea depth allows undetected submarine movement, enabling stealth operations akin to China’s Hainan base.

Why it matters to India

The Rambilli base will significantly enhance India’s second-strike nuclear capability in the Bay of Bengal. With INS Aridhaman—India’s third SSBN—slated for 2025 commissioning, and plans for six SSNs underway, the base ensures long-term strategic deterrence. Coupled with Project Seabird’s Karwar base on the west coast, it strengthens India’s maritime posture on both fronts. These developments mark a decisive step in India’s goal of credible minimum nuclear deterrence and blue-water naval power.