The history of formulation of the constitution of Pakistan begins with the Lahore Resolution in 1940. It was here that the idea of Pakistan, a separate homeland for the Muslims of India, was first outlined. It came to be known as the Pakistan Resolution.
On June 3, 1947, the British Government accepted in principle the partition of India in order to create two independent dominions of Pakistan and India. The British Parliament passed the Indian Independence Act on July 18, 1947. Accordingly, the new state of Pakistan came into being on August 14, 1947. This new state was formed of East Bengal, a part of Assam (Sylhet), West Punjab, Sindh, N. W. F. P. and Baluchistan provinces of undivided India.
Under Section 8 of the Indian Independence Act of 1947, the Government of India Act of 1935 became, with certain adaptations, the working constitution of Pakistan.
However, the Quaid’s aim was the establishment of a truly Islamic society. As a result, a Constituent Assembly was set up under the Independence Act. The Constituent Assembly had a dual purpose; to draft the constitution of Pakistan and to act as a legislative body till the new constitution was passed and enforced.
On March 12, 1949, the Constituent Assembly adopted a resolution moved by Liaquat Ali Khan, the then Prime Minister of Pakistan.