| Office Name | Tetrahi B.O |
| Pincodes | 854102 |
| Area | Tetrahi |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Tetrahi B.O |
| Pincodes | 848207 |
| Area | Tetrahi |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Samastipur |
| Postal Region | Muzaffarpur |
| District | Darbhanga |
| State | Bihar |
| Telephone No. | Na |