Youm-e-Takbeer (The Day of Greatness) is celebrated as a National Day in Pakistan on May 28 in memorial of Chagai-I and Chagai-II when Pakistan exploded seven nuclear devices in response to India's five explosions of Pokhran-II in 1998, 17 days after the incident. Thus, Pakistan became the 7th World Nuclear and 1st in Muslim World.
