Hindi is coolie's language and spread by some dirty UP based politicians and bollywood in other parts of north india. While india was formed it has been agreed that the every state has the right to maintain it's identity and no language can be thrusted by anyone. If you force us to learn hindi, that what is the difference between British/portugese and hindi people. Every socieety is first identified by their community and not religion. A Kannadiga can convert to Islam , Christianity, Buddhism or anything else, but remain a Kannadiga. Don't make india to face the situation like ex-USSR.