National Labour Law Profile: Islamic Republic of Pakistan. Labour Rights in the Constitution.Unions will have the legal entitlement of the right to collective bargaining. We are also the largest employer-side labour law firm in Western Canada. We provide a full spectrum of labour law services to public and private sector clients. The right to know the overtime payment terms as outlined in the employment contract or as per applicable laws. In Pakistan, working conditions are less than favorable. Termination of the Contract. Labour Rights in the Constitution1. The Constitution of Pakistan contains a range of provisions with regards to labour rights found in Part.