What about all those Northies in Delhi who keep insulting South Indians as Madrasis as if they have come from another planet? I have seen more cases of insulting people other than Punjabi, UP, Haryanvi or Bihari in Delhi than in other places of India. In fact, when u get down from a local in Mumbai and ask for direction, ghati guides u in ffriendly way but in Delhi u get rude gestures.