Taluka Harsidhi Post Office List In Bihar East Champaran District
| Post Office | Harsiddhi S.o |
| Division | East Champaran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Harsidhi |
| District | East Champaran |
| State | Bihar |
| Phone | 06252-287769 |
| Sub Office | NA |
| Head Office | Motihari H.O |
| Pincode |
845422
|