To me so much depends on how many Nukes each side has. From the BBC
The Jane’s defence group estimates that India has between 200 and 250 nuclear weapons, compared with 150 in Pakistan. The International Institute for Strategic Studies makes a more modest estimate, with up to 90 in India and up to 30 in Pakistan.
India is talking about "finishing” Pakistan. If they exchange Nukes I think it will end up being the bloodiest war in human history (which is saying something as we all know). I can’t see India absorbing a nuclear strike and then “coming to her senses” once the fur starts to fly. I think you can count on Pakistan pretty much emptying the nuclear revolver if it looks like she is going down.
If they exchange circa 200 nuclear weapons (!!) what does that mean for the rest of us? (he asked hysterically, but truly fearfully)
As humans we have been so lucky and just barely smart enough for so long, I’ve got to hope we can keep it going a while longer.