Why was satellite aryabhatta launched in space?

Aryabhata was India's first satellite, named after the great Indian astronomer of the same name. It was launched by the Soviet Union on 19 April 1975 from Kapustin Yar using a Cosmos-3M launch vehicle. Aryabhata was built by the Indian Space Research Organization (ISRO) to conduct experiments related to astronomy. The satellite reentered the Earth's atmosphere on 11 February 1992.