| Post office | Chilwania B.O |
| Pin code | 845104 |
| Office type | B.O |
| Taluk / city | Bettiah |
| District name | West Champaran |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | West Champaran |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Madhubani S.O |
| Related head office | Bettiah H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 845104 | Balua Thori Bazar B.O | Bettiah | West Champaran | Bihar |
| 845104 | Bhitaha B.O | Bettiah | West Champaran | Bihar |
| 845104 | Bhuidharwa B.O | Bettiah | West Champaran | Bihar |
| 845104 | Binahi B.O | Bettiah | West Champaran | Bihar |
| 845104 | Chilwania B.O | Bettiah | West Champaran | Bihar |
| 845104 | Daunaha B.O | Bettiah | West Champaran | Bihar |
| 845104 | Dhanaha B.O | Bettiah | West Champaran | Bihar |
| 845104 | Dhumnagar B.O | Bettiah | West Champaran | Bihar |
| 845104 | Dumari B.O | Bettiah | West Champaran | Bihar |
| 845104 | Kathar B.O | Bettiah | West Champaran | Bihar |
| 845104 | Khaira Tola B.O | Bettiah | West Champaran | Bihar |
| 845104 | Machhaha B.O | Bettiah | West Champaran | Bihar |
| 845104 | Madhubani S.O | Bettiah | West Champaran | Bihar |
| 845104 | Mura Dih B.O | Bettiah | West Champaran | Bihar |
| 845104 | Parsauna B.O | Bettiah | West Champaran | Bihar |
| 845104 | Piprasi B.O | Bettiah | West Champaran | Bihar |
| 845104 | Ranglalahi B.O | Bettiah | West Champaran | Bihar |
| 845104 | Sisai B.O | Bettiah | West Champaran | Bihar |
| 845104 | Taulaha B.O | Bettiah | West Champaran | Bihar |