If 'Zero' was discovered by Aryabhatta who was born in Kaliyug, then how and who counted that Kaurav were 100 and Ravan had 10 heads before Kaliyug?
What's wrong in this? 0/0= (100-100) / (100-100) = (10+10) (10-10) /10 (10-10) =20/10=2?