Post Office Khalwa B.o Pin Code In Siwn State Bihar District Siwan
| Post Office | Khalwa B.o |
| Division | Siwan |
| Region | Muzaffarpur |
| Circle | Bihar |
| Taluka | Siwn |
| District | Siwan |
| State | Bihar |
| Phone | NA |
| Sub Office | Sahpur S.O |
| Head Office | Siwan H.O |
| Pincode | 841243 |
khalwa b.o branch pincode is 841243
khalwa b.o branch phone number is NA
khalwa b.o branch Head Office is Siwan H.O