Dividing the country on language basis was a big blunder.
Ideally, the country should have been divided by horizontal and vertical lines i.e. latitudes and longitudes, which are mathematically and scientifically verifiable. That would have simplified all matters.
Even now, it is not too late.
As there is a demand for smaller states all over India (for example, Telangana movement in Andhra Pradesh), let us redivide all states all over India by horizontal and vertical straight lines.