Which satellite was launched by India on 18 June 1981?

APPLE

The correct answer is Option (4) → APPLE

India has also made great strides in satellite development. Aryabhatt was launched on 19 April 1975, Bhaskar-I in 1979 and Rohini in 1980. On 19 June 1981, APPLE (Arian Passenger Payload Experiment) was launched through Arian rocket.