Urdu for Muslims, Hindi for Hindus

How this perception built to connect languages with religion?

Both languages got big contributions from people of both religions.

Re: Urdu for Muslims, Hindi for Hindus

I think script made the difference

Re: Urdu for Muslims, Hindi for Hindus

I think the difference is not limited to reading and writing, the people who follow this distinction try to avoid using words from other language in their conversation.

Re: Urdu for Muslims, Hindi for Hindus

Like Ninja said, the script made a difference. Hindus( the common man not literary scholars) already had a working script and spoken words in other languages and were not ready to adapt the arabic script for writing or anything arabic/persian for conversion which they saw as a foreign imposition forced on them by the muslims rulers. So Urdu gained a reputation as a muslim language.