| Office Name | Siswania B.O |
| Pincodes | 845301 |
| Area | Siswania |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Siswania B.O |
| Pincodes | 841436 |
| Area | Siswania |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Siswania B.O |
| Pincodes | 845453 |
| Area | Siswania |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | West Champaran |
| Postal Region | Muzaffarpur |
| District | West Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Siswania B.O |
| Pincodes | 272172 |
| Area | Siswania |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Basti |
| Postal Region | Gorakhpur |
| District | Sant Kabir Nagar |
| State | Uttar Pradesh |
| Telephone No. | Na |