India will launch indigenous nuclear submarine and the country's first intercontinental ballistic missile by 2015, a top defense official has said.

State-owned Indian Defense Research and Development Organization (DRDO) chief Avinash Chander has said the 5,000 km range nuclear-capable Agni V intercontinental ballistic missile and INS Arihant, a nuclear-powered submarine armed with atomic warhead missiles, would be ready by next year, The Times of India newspaper reported Saturday.

"The submarine is undergoing the power-raising (in the miniature nuclear reactor) phase, which I am sure will be completed in a month or two. Thereafter, it will go for sea trials. The K-15 missiles (nuclear-tipped with a 750 km strike range) are fully ready and will be tested from the submarine this year," he was quoted as saying Friday at a defense exhibition in the Indian capital.

He added: "Agni V will be tested in a canister-launch version later this year. After two to three trials, Agni V should be ready for induction by end-2015."