Removes limits on prime ministers serving more than two terms (Article 91). This measure potentially paves the way for opposition leader Nawaz Sharif’s return to that office, though he has yet to contest a seat for the national assembly, instead of opting to lead his party from outside parliament.Most if not all of them were amendments made in Military Dictatorship.
The 18th Amendment and Pakistan’s Political Transitions
The 18th Amendment and Pakistan’s Political Transitions | Center for American Progress