| Post office | Giriak S.O |
| Pin code | 803109 |
| Office type | S.O |
| Taluk / city | Giriak |
| District name | Nalanda |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Nawadha |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | NA |
| Related head office | Nawadha H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 803109 | Giriak S.O | Giriak | Nalanda | Bihar |
| 803109 | Adampur B.O | Nawada | Nawada | Bihar |
| 803109 | Bindidih B.O | Nawada | Nawada | Bihar |
| 803109 | Khanpur B.O | Nawada | Nawada | Bihar |
| 803109 | Mow Bindidah B.O | Nawada | Nawada | Bihar |
| 803109 | Purani B.O | Nawada | Nawada | Bihar |
| 803109 | Railer B.O | Nawada | Nawada | Bihar |
| 803109 | Gopalpur B.O | Warisaliganj | Nawada | Bihar |