150 years ago we lost the so called Mutiny of 1857 due to some kind of regionalism it was not the kind of regionalism that is conscious but it was regionalism. There was no problem of communalism back then. Due to communalism India was divided into two. I beg with folded hands never ever encourage even conversation about regionalism in even casaul conversation.Regionalism is very dangerous and even an idiot can see that all Indians have something Indian in them which differentiates them from others. though of course people all over the world are creation of one God but at least we can do something about Mother India.