| Office Name | Siwana B.O |
| Pincodes | 127041 |
| Area | Siwana |
| Office Status | Branch Post Office |
| Postal Circle | Haryana |
| Postal Division | Bhiwani |
| Postal Region | Ambala Hq |
| District | Bhiwani |
| State | Haryana |
| Telephone No. | Na |
| Office Name | Siwana S.O |
| Pincodes | 344044 |
| Area | Siwana |
| Office Status | Sub Post Office |
| Postal Circle | Rajasthan |
| Postal Division | Barmer |
| Postal Region | Jodhpur |
| District | Barmer |
| State | Rajasthan |
| Telephone No. | 02901-231048 |