| Post Office | Baghauna |
| Division | Saran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Siswan |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Mohamadpur S.O |
| Head Office | Chapra H.O |
| Pincode |
841223
|
| Post Office | Bankat |
| Division | Saran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Bhagwanpur Hat |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Sahajitpur S.O |
| Head Office | Chapra H.O |
| Pincode |
841422
|
| Post Office | Sagar Sultanpur |
| Division | Saran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Bhagwanpur Hat |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Masrakh S.O |
| Head Office | Marhowrah H.O |
| Pincode |
841417
|
| Post Office | Admapur |
| Division | Siwan |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Siwan |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Raghunathpur S.O (Siwan) |
| Head Office | Siwan H.O |
| Pincode |
841504
|
| Post Office | Agya |
| Division | Siwan |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Siwan |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Mustfabad S.O |
| Head Office | Siwan H.O |
| Pincode |
841439
|
| Post Office | Akolhi |
| Division | Siwan |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Siwan |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Mairwa S.O |
| Head Office | Siwan H.O |
| Pincode |
841239
|