April 19th marks the launch of Aryabhatta the first ever satellite that was built by India. Sent up into space in 1975. It was named after 5th century Indian astronomer and mathematician Aryabhatt. The satellite also launched the trajectory of the programs of the Indian Space Research Organization. By marking the beginning of its space journey. Indepth explains the journey of Aryabhatt and the place it occupies in the space odyssey of ISRO.