None of those states make sense because they were built by colonialists drawing lines on a map without regard for native concerns. If Indians themselves sat down to divide India along actual ethno-cultural-linguistic lines we'd end up with better results. I'm not saying it's likely or even possible... just that if it were to happen, they might themselves be happier and more prosperous.

I don't know what that would look like because I don't know India that well, but I do know that the guys at work from Tamil Nadu are very different from the guys from Northern India. It's not a Texas vs California difference, it's a "we don't even have the same mother tongue" difference.