Correct Answer : Option (D) - INS Arighaat
India tested the nuclear-capable K-4 ballistic missile with a range of approximately 3,500 km from the nuclear-powered INS Arighaat submarine in the Bay of Bengal.
This successful test strengthens India's nuclear deterrence capabilities, showcasing its ability to launch nuclear missiles from land, air, and undersea.
The INS Arighaat, commissioned on August 29, 2024, is a state-of-the-art submarine with fully Indigenous systems, underlining India's technological advancements in defence.