| Office Name | Koiri Bigha B.O |
| Pincodes | 804424 |
| Area | Koiri Bigha |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Gaya |
| Postal Region | Patna Hq |
| District | Jehanabad |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Koiri Bigha B.O |
| Pincodes | 804403 |
| Area | Koiri Bigha |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Gaya |
| Postal Region | Patna Hq |
| District | Gaya |
| State | Bihar |
| Telephone No. | Na |