Find Phone number, Location Address and all other information of Construction Companies in Karachi TNB Construction Karachi on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-21-34200208, or you can visit their location in person, address location is: BS-14/A, Suite No. 13-A, 2nd Floor, Kashif Amir Plaza, Near Water Pump, Block 16, F.B Area, Karachi..