The Satellite Launch Vehicle or SLV was a project started in the early 1970s by the Indian Space Research Organisation to develop the technology needed to launch satellites. The project was headed by APJ Abdul Kalam. SLV was intended to reach a height of 400 km and carry a payload of 40 kg.[dated info]The first experimental flight of SLV-3, in August 1979, was only partially successful.
It was a four-stage rocket with all solid-propellant motors.
The first launch of the SLV took place in Sriharikota on 10 August 1979. The fourth and final launch of the SLV took place on 17 April 1983.