India's longest-range missile is currently the Agni-III, which has a range of 3,500 kilometers (2,100 miles), leaving it short of many major Chinese cities.
The Agni-V is a solid-fuel, three-stage missile designed to carry a 1.5-ton nuclear warhead. It stands 17.5 meters (57 feet) tall, has a launch weight of 50 tons and was built at a reported cost of 25 billion rupees ($486 million). It can be moved across the country by road or rail and can be used to carry multiple warheads or to launch satellites into orbit.
India already has the capability of hitting anywhere inside archrival Pakistan, but in recent years its increased defense spending has been focused on countering a perceived Chinese threat. India and China fought a war in 1962 and continue to nurse a border dispute. India has also been suspicious of Beijing's efforts to increase its influence in the Indian Ocean in recent years.
Gupta said the new Agni, named for the Hindi word for fire, should not be seen as a threat.
"We have a declared no-first-use policy. Our program is for deterrence and for peace," he said.