Still orth indians have an unfair advantage of being able to use their mother tongue in all competitive exams. You can not force any language over anyone, that didnt happen even in Ottoman Turki! Be realistsic - ours is a huge country with differnt culture and language and we are going to remain the same.
Imagine a case the south Indians outnumbeing northies. Would you then accept a saouth indian language say Tamil as national language and start speaking it? C|ommon - we know the north Indina racism, we know what you are.