| Post office | Umarpur Diar B.O |
| Pin code | 802118 |
| Office type | B.O |
| Taluk / city | Simri |
| District name | Buxar |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Bhojpur |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Dulahpur S.O |
| Related head office | Buxar H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 802118 | Dulahpur S.O | Simri | Buxar | Bihar |
| 802118 | Mansingh Patti Barkagaon B.O | Simri | Buxar | Bihar |
| 802118 | Nagpura B.O | Simri | Buxar | Bihar |
| 802118 | Sonbarsa B.O | Simri | Buxar | Bihar |
| 802118 | Umarpur Diar B.O | Simri | Buxar | Bihar |
| 802118 | Upadhyapandeypur B.O | Simri | Buxar | Bihar |