Post Office: KARACHI SADDAR GPOPost Office Type: SUB OFFICE Delivery Office Status: Non Delivery Post OfficeDistrict: Karachi Saddar GPOPin/Post Code:74400Region: SindhContact Address: Postmaster, Post Office KARACHI SADDAR GPO (Sub Office), Karachi Saddar GPO Pakistan, Pincode:- 74400Postal Dist:- Karachi Saddar GPOPostal Region:- SindhPostal Circle:- Sindh