There is much evidence that while deeply original, Aryabhata’s mathematics was substantially influenced by mathematical developments in Greece, Babylon and Rome. There was outside influence, and yet in Aryabhata’s hands, mathematics in India — and astronomy too — took gigantic leaps that were pioneering contributions for the whole world. India learned something but gave to the world enormously more than what it had learned from outside.
From the above text we can infer that:
1
Aryabhata’s mathematics was totally indigenous.
2
Aryabhata’s mathematics was totally based upon the mathematical developments in Greece, Babylon and Rome.
3
Although Aryabhata’s mathematics was profoundly original, it has effects of mathematical developments in Greece, Babylon and Rome to a considerable extent.
4
Aryabhata’s mathematics was influenced from Astronomy.