Easier said than done. A battle of attrition will be highly bent in our favor.
Lets not even talk numbers. Let us discount the fact that the strength of an invading force needs to be a multiple of the strength of the defending force by a factor proportional to the control the defending force has over the area it controls (in our case - 5,50,000 is a decent ballpark in Kashmir alone).
You probably might not accept it, but Kashmir has become nothing more than a game on one-upmanship.
Pakistan is waking up to a world where it has a lot of catching up to do in a plethora of HRD areas, the investment in defence spending alone sucks up so much of your annual budget that the scope to implement much else becomes difficult. (no I am not projecting that we are not in the same cauldron of third world problems, just that we doing better to tide over them by pioneering concepts like "frugal innovation", "disruptive innovation", etc...)
There is not even a pyrrhic victory here. The pursuit is flawed and so is any primary hypothesis that does not take long-term sustenance into consideration.