"Yaum-e-Takbeer" is celebrated to commemorate the:

یوم تکبیر کن کی یاد میں منائی جاتی ہے

1965 War

Adoption of Pakistan Resolution

Death of School children in Peshawar

First Nuclear tests by Pakistan

Youm-e-Takbeer is celebrated on May 28

It is celebrated in commemoration of the Chagai-I and Chagai-II series of nuclear tests

This day made Pakistan the seventh nuclear state of the world