Pakistan, Jan. 26 -- A high-level Pakistani parliamentary delegation has urged US lawmakers to remove Pakistan from a list of countries subject to stricter immigration visa scrutiny, calling the classification a major obstacle to improved bilateral relations.

Read More: Pakistani lawmakers arrive in Washington for talks

The delegation, led by Senators Saleem H. Mandviwalla and Rana Mahmoodul Hassan, visited Washington this week to strengthen parliament-to-parliament ties and raise concerns over Pakistan's inclusion among 75 nations whose citizens face heightened visa restrictions. Experts from trade, business and policy sectors also accompanied the lawmakers.

Speaking during meetings with members of Congress, Senator Mandviwalla descri...