Post Office: KARACHI CITY GPOPost Office Type: SUB OFFICE Delivery Office Status: Non Delivery Post OfficeDistrict: Karachi City GPOPin/Post Code:74000Region: SindhContact Address: Postmaster, Post Office KARACHI CITY GPO (Sub Office), Karachi City GPO Pakistan, Pincode:- 74000Postal Dist:- Karachi City GPOPostal Region:- SindhPostal Circle:- Sindh