| Post office | Siur B.O |
| Pin code | 805107 |
| 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 | Kosi S.O (Nawada) |
| Related head office | Nawadha H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 805107 | Mahrawan B.O | NA | Nawada | Bihar |
| 805107 | Marara B.O | NA | Nawada | Bihar |
| 805107 | Siur B.O | NA | Nawada | Bihar |
| 805107 | Bhattagarh B.O | Roh | Nawada | Bihar |
| 805107 | Kosi S.O (Nawada) | Roh | Nawada | Bihar |
| 805107 | Kundabhalua B.O | Roh | Nawada | Bihar |
| 805107 | Rupau B.O | Roh | Nawada | Bihar |