Post Office Chainpur B.o Pin Code In Raxaul State Bihar District East Champaran
| Post Office | Chainpur B.o |
| Division | East Champaran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Raxaul |
| District | East Champaran |
| State | Bihar |
| Phone | NA |
| Sub Office | Ramgahrwa S.O |
| Head Office | Motihari H.O |
| Pincode | 845433 |
chainpur b.o branch pincode is 845433
chainpur b.o branch phone number is NA
chainpur b.o branch Head Office is Motihari H.O