The result is that no one else can tolerate your nuclear ability after that. You don't become just an enemy of the guys you nuked, but everyone else as well. An

The result is that no one else can tolerate your nuclear ability after that. You don't become just an enemy of the guys you nuked, but everyone else as well. And nuclear weapons are far more capable than conventional weapons but you can survive being nuked. It's not the end of the world. The problem follows after, when India can no longer convince America, Russia, or China that they can be trusted with nuclear weapons. Economic sanctions would be devastating. India has limited fossil fuels and as of now a not yet fully indigenous defence industry. Being irresponsible nuclear users means all major powers will cut them off because they're a danger to all. It isn't even clear that other world powers will settle for isolation. They may well require disarmament.