The Agni-III is an Indian intermediate-range ballistic missile inducted into service in 2011 as the successor of the Agni-II. It has a range of 3,500 to 5,000 kilometres and can reach targets deep inside neighbouring countries including Pakistan & China.

An intermediate-range ballistic missile (IRBM) is a ballistic missile with a range of 3,000–5,500 km, between a medium-range ballistic missile (MRBM) and an intercontinental ballistic missile (ICBM). Classifying ballistic missiles by range is done mostly for convenience. In principle there is very little difference between a low-performance ICBM and a high-performance IRBM, because decreasing payload mass can increase the range over the ICBM threshold. The range definition used here is used within the U.S. Missile Defense Agency.