Lol India won't survive either. Go learn about the after effects of nuclear fallout. It doesn't matter if the world wouldn't care about a destroyed Pak and care deeply about a destroyed India. Both would cease to exist and that's that.
thr were closer to 5000 nukes tested majority of them air bursts... Earth is doing fine few 100 thermo nukes on a land mass as large as pakistan will not end anything...
most of rural pakistan will survive even if 200 nukes are dropped around 300 kt.
Although the structure and economy centres will go down but not totally gone.
In case of India 200 nukes of 300 kt with 50 taken out with ABMs most of tier 2 cities will survive that means India economy can take the hit.