The Agni missile is an IRBM developed under the IGMDP by India. It was first tested at the Interim Test Range in Chandipur in 1989, and is capable of carrying a conventional payload of 1000 kg (2,200 lb) or a nuclear warhead. It consists of one (short range) or two stages (intermediate range). It is rail and road mobile. It is powered by solid and/or liquid propellants.

Agni III can hit strategic targets deep inside China with a strike range of 3,500-4,000 km. It is expected to be test-fired sometime between April and May 2004. It falls short of the range of ICBMs (intercontinental ballistic missiles) which have ranges over 5,000 km.

Agni III is the third in the Agni series of missiles. The Agni I has a range of 700-800 km while the Agni II has a range of 2,000–2,500 km. They are claimed to be a part of the "credible deterrence" against Pakistan. The Agni II can only reach some parts of western China. Some parts of the missile have benefitted from India's Space Program.

See also: List of missiles