Explanation

The first constitution of Pakistan was enforced on March 23, 1956

Additional information

List of the Constitution of Pakistan 1947 to date

First:   1956 Constitution

• Adoption Date: 23rd March 1956

• Prime Minister: Chaudhry Muhammad Ali

• President: Iskander Mirza

Second: 1962 Constitution

• Adoption Date: 8th June 1962

• Prime Minister: Muhammad Ayub Khan (also President at the time)

Third: 1973 Constitution

• Adoption Date: 12th April 1973

• Prime Minister: Zulfikar Ali Bhutto

• President: Fazal Ilahi Chaudhry

  
  

  Last updated by NA on 25-April-2026

Explanation

Last verified on 06-06-2026

Explanation

• Martial Law imposed by Ayub Khan started on 27 October 1958.
• It was formally lifted on 8 June 1962.
• After that, a new constitution of 1962 was introduced.
• His era is known as the “Decade of Development” in Pakistan history.

Last verified on 06-06-2026

Explanation

• The Radcliffe Line was drawn by Sir Cyril Radcliffe in 1947.
• It separated India and Pakistan during the partition of British India.
• The boundary mainly divided Punjab and Bengal provinces.
• The line was officially announced on 17 August 1947.

Last verified on 06-06-2026

Explanation

• The Indus Waters Treaty was signed on September 19, 1960, in Karachi.
• It was signed between Pakistan (President Ayub Khan) and India (Prime Minister Jawaharlal Nehru).
• It was brokered by the World Bank.

It became effective on April 1, 1960.

• Western Rivers (given to Pakistan): Indus, Jhelum, Chenab
• Eastern Rivers (given to India): Ravi, Beas, Sutlej

Last verified on 30-03-2026