India's new nuclear missile, the Agni II, will be tested in September from Wheeler Island, off the Orissa coast in India.
The Defence Research and Development Organisation (DRDO)-developed Agni II has two stages, powered by solid propellants.
The missile is capable of carrying nuclear warheads, which are protected from intense heat when the missile re-enters the atmosphere using re-entry technology developed by the DRDO.
The speed of the missile ranges between 2,750km and 3,000km and fills the gap between the Agni II (2,500km) and Agni III (3,500 km) missiles.
Agni I is a single-stage missile that can hit enemy targets from a distance of 700km.