| Office Name | Usari S.O |
| Pincodes | 804428 |
| Area | Usari |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Gaya |
| Postal Region | Patna Hq |
| District | Gaya |
| State | Bihar |
| Telephone No. | 06337-111111 |
| Office Name | Usari B.O |
| Pincodes | 494224 |
| Area | Usari |
| Office Status | Branch Post Office |
| Postal Circle | Chattisgarh |
| Postal Division | Bastar |
| Postal Region | Raipur |
| District | Bastar |
| State | Chattisgarh |
| Telephone No. | Na |