| Post office | Harnathpur B.O |
| Pin code | 821109 |
| Office type | B.O |
| Taluk / city | Mohania |
| District name | Kaimur (Bhabua) |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Rohtas |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Mohania S.O |
| Related head office | Sasaram H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 821109 | Bare B.O | Bhabua | Kaimur (Bhabua) | Bihar |
| 821109 | Salathua B.O | Kudra | Kaimur (Bhabua) | Bihar |
| 821109 | Akorhi B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | B. Khas B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Badupur B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Belondi B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Bhitti B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Dadar B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Dangri B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Darhwa B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Harnathpur B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Kaithi B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Kathej B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Katra Kala B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Khnethi B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Mohania S.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Mujan B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Muthani B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Nateya B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Panapur B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Ratwar B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Ruppur B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Shahbajpur B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Sondhi B.O | Mohania | Kaimur (Bhabua) | Bihar |
| 821109 | Sukul Pipra B.O | Mohania | Kaimur (Bhabua) | Bihar |