Jewel - If he swore at you that's a different matter and you should report it to HMC HR. You made no mention of that in your original post.

btw, it can still be racism even if you're both from India. You have accused him of treating you unfairly because of the region of India you come from. That is accusing him of racism, which is a very serious accusation. (I'm not saying if it's a true or false accusation, as it seems you haven't given us all the facts.)