| Office Name | Barka Singhanpura B.O |
| Pincodes | 802120 |
| Area | Barka Singhanpura |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Chakki B.O |
| Pincodes | 802120 |
| Area | Chakki |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Dumari S.O Buxar |
| Pincodes | 802120 |
| Area | Dumari Buxar |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | 06183-111111 |
| Office Name | Kharahatand B.O |
| Pincodes | 802120 |
| Area | Kharahatand |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Rani Singhanpura B.O |
| Pincodes | 802120 |
| Area | Rani Singhanpura |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | Na |