Pakistan Top StoriesKarachi Lockdown: PTI stage sit-ins in different areas of cityTNT DeskDecember 12, 2014December 12, 2014 by TNT DeskDecember 12, 2014December 12, 2014 KARACHI: Pakistan Tehreek-e-Insaf (PTI) have staged sit-ins in different areas of Karachi, as road are blocked and transport is not allowed on the roads....