Post Office: KARACHI CITY G.P.O.Post Office Type: SUB OFFICE Delivery Office Status: Delivery Post OfficeDistrict: Karachi CityPin/Post Code:74000Region: SindhContact Address: Postmaster, Post Office KARACHI CITY G.P.O. (Sub Office), Karachi City Pakistan, Pincode:- 74000Postal Dist:- Karachi CityPostal Region:- SindhPostal Circle:- Sindh