Indian armed forces are to be equipped with fully functional delivery systems to be able to launch a nuclear warhead from land, air or water, Atomic Energy Commission (AEC) chief Srikumar Banerjee said.
"Our strategic programme will be further strengthened to assure minimum credible deterrents - our triad of the delivery system will be fully functional," he said.
Electromagnetic and high-power microwave devices will be deployed in the missile defence system for target precision, according to the Hindustan Times.
The entry and exit points to the country, by land, sea and air, will be equipped with scanners to provide security against any unauthorised movement of nuclear materials.
India has, for the first time, revealed its weaponisation programme to ensure minimum credible deterrence since the embargo on civil nuclear cooperation was lifted in September 2008.