The President of Pakistan is chosen by an electoral college, in Pakistan. According to Article 41(3) of the Constitution of Pakistan, this electoral college consists of the Senate, the National Assembly of Pakistan, and the Provincial Assemblies of the four provinces. Members of the National Assembly and Provincial Assemblies are directly elected by the people in competitive multi-party elections. Members of the Senate are indirectly elected by the provincial assemblies.
References
Electoral College (Pakistan) Wikipedia(Text) CC BY-SA