In May 1998 , following India 's nuclear tests earlier that month , Pakistan conducted two sets of nuclear tests , the Chagai-I and Chagai-II . Although there is little confirmed information in public , as of 2015 , Pakistan was estimated to have as many as 120 warheads . According to analyses of the Carnegie Endowment for International Peace and the Stimson Center , Pakistan has enough fissile material for 350 warheads
nuclear tests
Pokhran-II
Treaty on the Non-Proliferation of Nuclear Weapons