By Dinakar Peri On April 3, 2026, India’s nuclear triad crossed a major milestone with the quiet commissioning of INS Aridhaman—the country’s third nuclear ballistic missile submarine or SSBN (Submersible Ship Ballistic Nuclear)—at the Ship Building Centre in Visakhapatnam in Andhra Pradesh. While no formal announcement was made on the “boomer,” as SSBNs are referred […]