It is not possible because of great hostility and even if it is possible, here is why being an Indian you should not think about it
1) Terrorism which comes into India by way of infiltration will become part of mainland India 2) We will be most populus country in the world. 3) It will be threat to all the Hindu's to have Jehadis roaming around us freely 4) While India is doing great on economic front, this will trigger a backward journey 5) Peace, which is still rare commodity in India will only be in our dreams. 6) Pakistan has no development, no industries that means adding 400 useless million people without any extra resources.
So please keep these weird thought confined to your brain.
