When was the Constitution of 1973 enforced? A) 10th April, 1973 B) 14th August 1973 C) 10th March 1973 D) 10th August 1973 Related MCQs: Second constitution of Pakistan was enforced on? According to the 1973 Constitution President is the Head of the State. Who the elect the President? When Ayub Khan enforced a new constitution in Pakistan? The Constitution of 1962 was enforced in the country on?