Which was the first satellite put in space by India?

Aryabhata was India's first satellite, named after an Indian astronomer of the same name.
It was launched by the Soviet Union on 19 April 1975 from Kapustin Yar using a Kosmos-3M launch vehicle. It was built by the Indian Space Research Organisation (ISRO) to gain experience in building and operating a satellite in space. The launch came from an agreement between India and the Soviet Union directed by U.R. Rao and signed in 1972.