Which kind of system of government was introduced in 1962 constitutionn?

Explanation
The Constitution of 1962 envisaged a Federal State with a Presidential form of government, with the National Assembly at the center and th e Provincial Assemblies in the Provinces *** The Constitution of 1962 was promulgated by President Ayub Khan on   1 March 1962  and finally came into effect on   8 June 1962. Urdu and Bengali Was The Official Language  Ayoub Khan was made chief of martial law after this abrogation Ayoub Khan enforced the new constitution on 8th June 1962 Yahiya Khan  a brogated the 1962 constitution and became CMLA ND18-5-2023