Post Office: KARACHI GPOPost Office Type: SUB OFFICE Delivery Office Status: Non Delivery Post OfficeDistrict: Karachi GPOPin/Post Code:74200Region: SindhContact Address: Postmaster, Post Office KARACHI GPO (Sub Office), Karachi GPO Pakistan, Pincode:- 74200Postal Dist:- Karachi GPOPostal Region:- SindhPostal Circle:- Sindh