| Office Name | Siyana B.O |
| Pincodes | 852105 |
| Area | Siyana |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Saharsa |
| Postal Region | Muzaffarpur |
| District | Supaul |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Siyana B.O |
| Pincodes | 313334 |
| Area | Siyana |
| Office Status | Branch Post Office |
| Postal Circle | Rajasthan |
| Postal Division | Udaipur |
| Postal Region | Ajmer |
| District | Rajsamand |
| State | Rajasthan |
| Telephone No. | Na |
| Office Name | Siyana S.O |
| Pincodes | 203412 |
| Area | Siyana |
| Office Status | Sub Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Bulandshahar |
| Postal Region | Agra |
| District | Bulandshahr |
| State | Uttar Pradesh |
| Telephone No. | 05736-271139 |