| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Baghauna B.O | 841223 | Branch Post Office | Delivery | Saran | Muzaffarpur | Bihar | Siswan | Siwan | - | Mohamadpur S.O | Chapra H.O |
| 2. | Bankat B.O | 841422 | Branch Post Office | Delivery | Saran | Muzaffarpur | Bihar | Bhagwanpur Hat | Siwan | - | Sahajitpur S.O | Chapra H.O |
| 3. | Sagar Sultanpur B.O | 841417 | Branch Post Office | Delivery | Saran | Muzaffarpur | Bihar | Bhagwanpur Hat | Siwan | - | Masrakh S.O | Marhowrah H.O |
| 4. | Admapur B.O | 841504 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Raghunathpur S.O (Siwan) | Siwan H.O |
| 5. | Agya B.O | 841439 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Mustfabad S.O | Siwan H.O |
| 6. | Akolhi B.O | 841239 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Mairwa S.O | Siwan H.O |
| 7. | Alapur B.O | 841286 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Bakerganj S.O | Siwan H.O |
| 8. | Amarpur B.O | 841234 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Darauli S.O | Siwan H.O |
| 9. | Amlori B.O | 841226 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Satation Road S.O | Siwan H.O |
| 10. | Andar S.O | 841231 | Sub Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Andar | Siwan | 06154-111111 | - | Siwan H.O |
| 11. | Ansar B.O | 841203 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Chainpur S.O (Siwan) | Siwan H.O |
| 12. | Anugrhnagar B.O | 841239 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Mairwa | Siwan | - | Mairwa S.O | Siwan H.O |
| 13. | Aranda B.O | 841236 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Hasanpura S.O | Siwan H.O |
| 14. | Asaon S.O | 841287 | Sub Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | 06154-111111 | - | Siwan H.O |
| 15. | B.P.Ekderwsa B.O | 841243 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Sahpur S.O | Siwan H.O |
| 16. | Babhanbara B.O | 841506 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Tarwara S.O | Siwan H.O |
| 17. | Badram B.O | 841241 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Pachrukhi S.O | Siwan H.O |
| 18. | Bagaura S.O | 841404 | Sub Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | 06154-111111 | - | Siwan H.O |
| 19. | Baghi B.O | 841406 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Basantpur S.O (Siwan) | Siwan H.O |
| 20. | Bahadur Bazar B.O | 841404 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Bagaura S.O | Siwan H.O |
