After successfully launching its long range Agni V missile India is now developing a new anti radiation (ARM) missile designed to destroy enemy radars.
ARM missiles detect and home in on enemy radio emissions and are most commonly used against air defence batteries such as SAM (Surface to Air Missiles) sites disabling their radar system, preventing accurate strikes against aircraft. Modern ARM missile's can detect a radar by tracking its electro-magnetic radiation and pulses independent of the radar wavelength.
Indian Missile Development
The Defence Research and Development Laboratory (DRDL) are developing the missile to fit the Indian Sukhoi fighter Su-30 MKI. The Indian air force will soon have a fleet of over 240 Su-30's as a further 100 more are on order from Russia adding to the existing 140 in use.
Recent conflicts such as the Gulf Wars saw the wide spread use of the ARM missile as NATO forces gained air superiority suppressing ground forces from the air. The US operated with the AGM-88 HARM missile and the UK with the ALARM missile (as pictured above).