Most Indians dont have a clue about history. The world "India" is a artificial term that never existed prior to the European colonists (probably the French or portuguese named it as they cannot pronounce "h" in hind. This is purely an artificial formulation of a land ....it was never really "one" country. Even under the Moguls and the Delhi sultanate, there were princely states that ruled their lands fairly independently. Even prior to the muslim rule, Sind was fairly separate, Gujarat was separate, bengal was separate..most of India was divide into smaller and independent kingdoms that were constantly fighting. India cannot stand as one single unit...forget Pakistan ...even India that stands today cannot survive as one centralized unit for too long. This goes against history. The concept of india really was started by the British and propagated by the Indian congress. If you go way back to the Mauryans then yes maybe over a span of a few hundred years India may have been united but even in those you had smaller states that were autonomous. My point being that India the way it is structured today with a strong centralized govt cannot survive. There will be fractures appearing in the near future. Pakistan is different as what is today was what was Sind for centuries barring parts of KP and most of what exists today was united under the Rashiduns and Ummayads and later muslim rule so as long as this land called Paksitan is under some sort of an Islamic rule, it can and has shown to stay united. It may not survive in its current structure and may get subsumed by another islamic empire but will likely stay intact but India cannot survive in the long run