Pakistan adopted its first and only constitution in 1980.
The First Amendment to the Constitution of Pakistan ( Urdu : آئین پاکستان میں پہلی ترمیم ) is a part of the Constitution of Pakistan which came on effect on May 4 of 1974 . Pakistan . As a result of the Pakistan Movement led by Muhammad Ali Jinnah and the subcontinent 's struggle for independence , Pakistan was created in 1947 as an independent homeland for South Asian Muslims . Initially a dominion , Pakistan adopted a constitution in 1956 , becoming an Islamic republic . In 1973 Pakistan adopted a new constitution establishing , alongside its pre-existing parliamentary republic status , a federal government based in Islamabad consisting of four provinces and four federal territories . The new constitution also stipulated that all laws were to conform to the injunctions of Islam as laid down in the Quran and Sunnah .