Karnataka,Kerala,Tamil Nadu and Andhra Pradesh, but who will take the pain to spell such difficult names,so they call it simply "MADRAS" .Cochin ,Hydrabad,Kovilpatti or Mysore everything is called MADRAS, and you get a common name MADRASI.Some people don't even know, that there are four different states with different languages exist .They think ,that the whole of South India is called MADRAS.
Some of the myths :
South Indias are dark black
MADRSIs drink only filter coffee all the time
Madrasis read only Hindu
Madrasis hate speaking Hindi
Madrasis eat only dosa ,idly and sambar
Madrasis speak a Alien language
Jayalalitha Amma , VeerAppa and Rajinikanth are the three Gods of worship.
When i say "they " " they " "they" , who are these people, these are North Indians from north India,which comprises the rest of India (East ,West,North and Banglore) and do we know that its not a sigle state ? ,there are other languages otherthan Hindi that they speak ?
If you are from Bombay ,Calcutta ,Ambala ,Bhuvaneswar or Baroda ,you are still called a North Indian in MADRAS(comprising Karnataka,Tamil Nadu ,Andhra Pradesh and Kerala ,minus Banglore).