India and Pakistan are in no danger of going to war at the moment. This is sensationalist journalism.
The two nations could only, if it ever comes to it again, fight a token war or a nuclear war. Neither could conquer the other, nor could they successfully occupy it.
They could kill a bunch of people, but there's hardly a shortage in either country.
I don't see why India can't occupy PAkistan. There are parts of Sindh especially which would very much prefer Indian occupation as they are sore of having controlled by Punjabis (most of the military and political establishment in Pakistan are Punjabi muslims). Any future war will definitely see India reoccupying all of Kashmir and other strategic areas so as to deter any chance of future Pakistani infiltration. It will mean that we will push Pakistan back to the plains.