Post Office Chainwa S.o Pin Code In Ekma State Bihar District Saran
| Post Office | Chainwa S.o |
| Division | Saran |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Ekma |
| District | Saran |
| State | Bihar |
| Phone | 06152-111111 |
| Sub Office | NA |
| Head Office | Chapra H.O |
| Pincode | 841204 |
chainwa s.o branch pincode is 841204
chainwa s.o branch phone number is 06152-111111
chainwa s.o branch Head Office is Chapra H.O