| Post office | Kosla B.O |
| Pin code | 805109 |
| Office type | B.O |
| Taluk / city | NA |
| District name | Nawada |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Nawadha |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Nardiganj S.O |
| Related head office | Nawadha H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 805109 | Reula B.O | NA | Gaya | Bihar |
| 805109 | Seotar B.O | NA | Gaya | Bihar |
| 805109 | Aranikesopur B.O | NA | Nawada | Bihar |
| 805109 | Dohra B.O | NA | Nawada | Bihar |
| 805109 | Kahuara B.O | NA | Nawada | Bihar |
| 805109 | Kosla B.O | NA | Nawada | Bihar |
| 805109 | Masaurha B.O | NA | Nawada | Bihar |
| 805109 | Nardiganj S.O | NA | Nawada | Bihar |
| 805109 | Prama B.O | NA | Nawada | Bihar |
| 805109 | Sarsu B.O | NA | Nawada | Bihar |