The Defence Research and Development Organisation (DRDO) has announced the development of cutting-edge quantum sensing technology aimed at enhancing India’s anti-submarine warfare (ASW) capabilities. On August 17, 2025, DRDO Chairman Dr. Samir V. Kamat revealed that these quantum magnetometers can detect subtle disturbances in the Earth’s magnetic field, enabling detection of submarines at greater depths—a decisive advantage against the expanding undersea fleets of China and Pakistan in the Indian Ocean Region. This indigenous breakthrough is part of a broader effort, including the recent opening of the Quantum Technology Research Centre (QTRC) in Delhi, to promote sovereign innovation in quantum sensing and secure communications. Integration with key Indian platforms such as the P-8I Poseidon and UAVs is expected within the next 2–3 years, signaling a strategic leap for India’s maritime security and deterrence posture. This initiative underscores India’s commitment to maintaining technological superiority and safeguarding its interests in a contested maritime environment.