| Post office | Kolhua B.O |
| Pin code | 841233 |
| Office type | B.O |
| Taluk / city | Siwan |
| District name | Siwan |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Siwan |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Daronda S.O |
| Related head office | Siwan H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841233 | Daronda S.O | Siwan | Siwan | Bihar |
| 841233 | Harsardhanauti B.O | Siwan | Siwan | Bihar |
| 841233 | Jalalpur B.O | Siwan | Siwan | Bihar |
| 841233 | Kolhua B.O | Siwan | Siwan | Bihar |
| 841233 | Laheji B.O | Siwan | Siwan | Bihar |
| 841233 | Machuta B.O | Siwan | Siwan | Bihar |
| 841233 | Mandrauli B.O | Siwan | Siwan | Bihar |
| 841233 | P.Harsar B.O | Siwan | Siwan | Bihar |
| 841233 | Ramsapur B.O | Siwan | Siwan | Bihar |
| 841233 | Rasulpur Tilouta B.O | Siwan | Siwan | Bihar |