India came to be as a protest by the occupied against the british occupation. Everyone agreed that the british had to go. Now that it isn’t a threat, parts of it want their old identity back. As they were mostly different kingdoms before british and french controlled the sub continent.

Hindus have been taking credit for all the stuff in the region as the sole driving force, by feeding propaganda, rewriting history, by swallowing other smaller culture/religions and calling them reincarnation of their hindu gods. It just adds to the fire.