Dear friend, the whole world knows about China's history..but they know the real history.. You know the history taught by your communist govt for ages..devoid of Tianamen square and Tibet's autonomy..So i suggest you come out of your hole and see the world as it is.. As far as india is concerned dont worry about them.. This is a country with 28 states with different language, clothing, food and appearance and still it is unified.. If autonomy is asked it is given in India, the demand is not suppressed oppresively.. You may not understand that as you dont know what diversity in culture means..