| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41. | Barkagaon B.O | 841226 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Satation Road S.O | Siwan H.O |
| 42. | Barkagaowan B.O | 841408 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Bhagwanpur Hat S.O | Siwan H.O |
| 43. | Barkamanjha B.O | 841243 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Sahpur S.O | Siwan H.O |
| 44. | Basantpur S.O (Siwan) | 841406 | Sub Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | 06153-278321 | - | Siwan H.O |
| 45. | Basaowan B.O | 841406 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Basantpur S.O (Siwan) | Siwan H.O |
| 46. | Basopali B.O | 841227 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Gaushalaroad Siwan S.O | Siwan H.O |
| 47. | Belaon B.O | 841235 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Done S.O | Siwan H.O |
| 48. | Belaur B.O | 841239 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Mairwa S.O | Siwan H.O |
| 49. | Belauri B.O | 841239 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Mairwa S.O | Siwan H.O |
| 50. | Benusar B.O | 841227 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Gaushalaroad Siwan S.O | Siwan H.O |
| 51. | Benusar Bujurg B.O | 841227 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Gaushalaroad Siwan S.O | Siwan H.O |
| 52. | Bhagar B.O | 841210 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siswan | Siwan | - | Gangpur Siswan S.O | Siwan H.O |
| 53. | Bhagwanpur Hat S.O | 841408 | Sub Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | 06153-111111 | - | Siwan H.O |
| 54. | Bhaisakhal B.O | 841245 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Zeradei S.O | Siwan H.O |
| 55. | Bhantapokher B.O | 841226 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Satation Road S.O | Siwan H.O |
| 56. | Bhartpura B.O | 841506 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Tarwara S.O | Siwan H.O |
| 57. | Bharuli B.O | 841245 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Zeradei S.O | Siwan H.O |
| 58. | Bherwania B.O | 841507 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Mora S.O (Siwan) | Siwan H.O |
| 59. | Bhikha Bandh Satjora B.O | 841244 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Takipur S.O | Siwan H.O |
| 60. | Bhikhpur B.O | 841408 | Branch Post Office | Delivery | Siwan | Muzaffarpur | Bihar | Siwan | Siwan | - | Bhagwanpur Hat S.O | Siwan H.O |
