What were the thoughts of the ancient Indian sage and scientist Aryabhatta regarding planetary motion?

(N/A) Aryabhatta,a renowned ancient Indian mathematician and astronomer,proposed a revolutionary model for planetary motion in his work,the $Aryabhatiya$.
$1$. He correctly postulated that the Earth rotates on its own axis from west to east.
$2$. He explained that the apparent motion of stars and planets from east to west is due to the rotation of the Earth.
$3$. He suggested that the planets move in circular orbits around the Sun,which was a significant departure from the prevailing geocentric models of his time.
$4$. He also provided accurate calculations for the periods of planetary rotation and revolution,demonstrating a deep understanding of celestial mechanics long before modern astronomy.