You write as if I'm in charge of Pakistan's nuclear program.
There is a reason why India did not invade Pakistan after the mumbai tragedy, same thing after the parliament attack.
Whether it is a bluff or not, it doesn't matter. As long as the threat exists, a chance of nuclear war (no matter how small) deters both sides from taking even limited military action.
There is absolutely no way two nuclear powers will be allowed to directly engage each other militarily, the world won't tolerate it. A third party intervention is inevitable when it comes to India and Pakistan, that's just a reality. Even a 0.0000001% chance of nuclear weapon usage forces the UNSC to act to stop any war.
Like it or not, the threat of a nuclear response HAS stopped war between the two, and previously, just like it stopped the USSR and the US. You trying to suggest otherwise doesn't change anything, because in the end, it is all about perception. As long as the world believes a nuclear war is possible (as it rightfully does), your entire argument gets thrown right out of the water.
India is not going to makes any concessions with kashmir. Pakistani army has to decide what they want to do.
america and russia did not attack each other cities. if pakistani backed militants are traced to mumbai style attacks the chances of Indian military action in Pakistan grows.