India was primarily the abode of the Dravidians. And then came the various invasions. The Aryans invaded 5000 yrs ago, Huns in 5th century, the Mughals in the 14th century and the British in the 18th. India has come a long way and that is the reason why this country is a melting point of so many religions, languages, cultures and sects.
The propensity to compromise and co-exist when survival is at stake, rather than heroically fight and die to the last man, allowed the Hindu culture and civilization to outlive (and even enriched by) the relentless conquests of proselytizing invaders.