On 28th May, 1998, Pakistan conducted its first successful nuclear tests, at Chagai, Balochistan. Youm-e-Takbir is celebrated as a national day in Pakistan on 28 May in commemoration of Chagai-I and Chagai-II series of nuclear tests. The nuclear tests made Pakistan the seventh nation to possess nuclear weapons and the first in the Muslim world Chagai-I was Pakistan's first public test of nuclear weapons. Its timing was a direct response to India's second nuclear test Pokhran-II, on 11 and 13 May