Aren’t we Indians first?

I am waiting for that day when one assaults the other in every state for not knowing the language. I mean I don’t know manipuri and hence a manipuri guy can beat me up because I am a kannadiga and kannadigas beat that person from Manipur for not knowing Kannada. Now whose fault is it? The larger question is aren’t we Indians first. Isn’t it disrespecting the language and the community itself by behaving like this?