Very true sir ! But unfortunately it is all due to ignorance . India is a big country with so many races and most of the time we do not know other people so much as we know their stereotypes .
And I dont think exactly that taunting Biharis and UP people would be racism according to the definition of it but it surely is discrimination though .
I think people if they are educated about each other then we might handle it better .But the Indian government does not acknowledge race as a criterion in its working so it might be difficult for following up on this
