| Post office | Karkain B.O |
| Pin code | 811104 |
| Office type | B.O |
| Taluk / city | Ghoswari |
| District name | Patna |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Monghyr |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Sarmera S.O |
| Related head office | Munger H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 811104 | Gopalbad B.O | Sarmera | Nalanda | Bihar |
| 811104 | Husaina B.O | Sarmera | Nalanda | Bihar |
| 811104 | Mirnagar B.O | Sarmera | Nalanda | Bihar |
| 811104 | Pyarepur B.O | Sarmera | Nalanda | Bihar |
| 811104 | Ramnathpur B.O | Sarmera | Nalanda | Bihar |
| 811104 | Sahari B.O | Sarmera | Nalanda | Bihar |
| 811104 | Sarmera S.O | Sarmera | Nalanda | Bihar |
| 811104 | Chero B.O | Srmera | Nalanda | Bihar |
| 811104 | Karkain B.O | Ghoswari | Patna | Bihar |