The Vikram Sarabhai Space Centre (VSSC) is a major space research centre of the Indian Space Research Organisation (ISRO), focusing on rocket and space vehicles for India's satellite programme. It is located in Thiruvananthapuram, in the Indian state of Kerala. The centre had its beginnings as the Thumba Equatorial Rocket Launching Station (TERLS) in 1962. It was renamed in honour of Dr. Vikram Sarabhai, often regarded as the father of the Indian space program. H.G.S. Murthy was appointed as the first director of Thumba Equatorial Rocket Launching Station. The Vikram Sarabhai Space Centre is one of the main research and development establishments within ISRO. VSSC is an entirely indigenous facility working on the development of sounding rockets, the Rohini and Menaka launchers, and SLV, ASLV, PSLV, GSLV and GSLV Mk III families of launch vehicles. History The space centre is the largest among the ISRO facilities. It is a centre for the design and development of satellite launch vehicles and associated technologies. The centre pursues research and development in a host of distinct technology domains including aeronautics, avionics, and composites, primarily for the purpose of advancing the development of launch vehicle technology in India. After incorporation of the Indian National Committee for Space Research (INCOSPAR) in 1962, its first act was the establishment of the Thumba Equatorial Rocket Launching Station (TERLS) at Thumba, in Thiruvananthapuram. Thumba was picked as the launch site for sounding rockets for meteorological and upper atmospheric research due to its location on the geomagnetic equator. H.G.S. Murthy was appointed as the first director of Thumba Equatorial Rocket Launching Station. 21 November 1963 marked India's first venture into space, with the launch of a two-stage Nike Apache sounding rocket from TERLS. The first rockets launched were built in United States. The first Indian designed and built rocket, RH-75, made its maiden flight on 20 November 1967. This was the 52nd launch of a sounding rocket from TERLS. It was flown twice again in 1967 and another 12 times in 1968, making a total of 15 RH-75 flights. Among the sounding rockets to have flown from TERLS were Arcas-1, Arcas-11, Centaure-1, 11A and 11B, Dragon-1, Dual Hawk, Judy Dart, Menaka-1, Menaka-1Mk 1 and Mk11, Nike Tomahawk, M-100, Petrel, RH-100, RH-125, RH-200 (S), RH-300, variants of RH-560, etc. There have been a total of nearly 2200 sounding rocket launches from TERLS, so far. Over the years VSSC has designed,