The K-4 missile is a submarine-launched ballistic missile developed by India. It is designed to enhance the country's strategic deterrence capabilities and can carry nuclear warheads. The missile has a range of approximately 3,500 kilometers, allowing it to target distant locations effectively. The K-4 is launched from nuclear submarines, specifically the Arihant-class, which are part of India's efforts to establish a credible second-strike capability. This missile is a significant advancement in India's defense technology, contributing to regional security dynamics and deterrence strategies against potential threats.