When first constitution of Pakistan was enforced?

The first constitution of Pakistan was enforced on 23rd March 1956. This date is significant as it marked Pakistan's transition from a dominion to an Islamic Republic, adopting its first formal constitution after nearly nine years of independence. The 1956 Constitution established a parliamentary form of government with a president as head of state and a prime minister as head of government, and it declared Pakistan an Islamic Republic. However, this constitution was short-lived, abrogated by martial law in 1958.

• Option A, 14th August 1947, is incorrect. This date marks Pakistan's independence from British rule, when it became a dominion within the British Commonwealth, but it did not have its own fully enacted constitution at that point.
• Option C, 14th August 1973, is incorrect. This date refers to the enforcement of Pakistan's current constitution, the 1973 Constitution, which replaced earlier constitutional frameworks and remains in effect today.
• Option D, 27th October 1958, is incorrect. This date is associated with the imposition of martial law by General Ayub Khan, which led to the abrogation of the 1956 Constitution and the beginning of a period of military rule in Pakistan. It was a date of constitutional crisis, not enforcement.