| Post office | Dumarkon B.O |
| Pin code | 821102 |
| Office type | B.O |
| Taluk / city | Bhagwanpur |
| District name | Kaimur (Bhabua) |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Rohtas |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Bhagwanpur S.O (Kaimur (Bhabua)) |
| Related head office | Sasaram H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 821102 | Adhaura B.O | Adhaura | Kaimur (Bhabua) | Bihar |
| 821102 | Kolhua B.O | Adhaura | Kaimur (Bhabua) | Bihar |
| 821102 | Umapur Saraiya B.O | Bhabuaa | Kaimur (Bhabua) | Bihar |
| 821102 | Bhagwanpur S.O (Kaimur (Bhabua)) | Bhagwanpur | Kaimur (Bhabua) | Bihar |
| 821102 | Chakedihra B.O | Bhagwanpur | Kaimur (Bhabua) | Bihar |
| 821102 | Dumarkon B.O | Bhagwanpur | Kaimur (Bhabua) | Bihar |
| 821102 | Kaser B.O | Bhagwanpur | Kaimur (Bhabua) | Bihar |
| 821102 | Khajura B.O | Bhagwanpur | Kaimur (Bhabua) | Bihar |
| 821102 | Kharenda B.O | Chand | Kaimur (Bhabua) | Bihar |
| 821102 | Jaitpur Kalan B.O | NA | Kaimur (Bhabua) | Bihar |