| S.No | Post Office Name | Pincode | Circle Name | Region Name | Division Name | Office Type | Delivery | District | State Name | Latitude | Longitude |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Amlori BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 2 | Badheyan BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 3 | Barkagaon BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 4 | Bhantapokher BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 5 | Chakra BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 6 | Chapia Bujurg BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 7 | Chapra Road SO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | PO | Non Delivery | SIWAN | BIHAR | 25.7904 | 84.7007 |
| 8 | Dhanuti BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 9 | Habibnagar BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 10 | Hardia BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 11 | Jiyan BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 12 | Mahodipur BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.21991 | 84.35807 |
| 13 | Markan BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 14 | Partap Pur BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.3352 | 84.33 |
| 15 | Sarsar BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 16 | Satation Road SO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | PO | Non Delivery | SIWAN | BIHAR | 26.2108056 | 84.3555833 |
| 17 | Siwan Chowk Bazar SO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | PO | Non Delivery | SIWAN | BIHAR | 26.2267778 | 84.36175 |
| 18 | Siwan HO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | HO | Delivery | SIWAN | BIHAR | 26.2269722 | 84.3564167 |
| 19 | Tarwa BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |
| 20 | Tetria BO | 841226 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 26.2108055 | 84.3555833 |