Post Office Osaon B.o Pin Code In Dehri On Sone State Bihar District Rohtas
| Post Office | Osaon B.o |
| Division | Rohtas |
| Region | Patna Hq |
| Circle | Bihar |
| Taluka | Dehri On Sone |
| District | Rohtas |
| State | Bihar |
| Phone | NA |
| Sub Office | Kachhwa S.O (Rohtas) |
| Head Office | Sasaram H.O |
| Pincode | 821309 |
osaon b.o branch pincode is 821309
osaon b.o branch phone number is NA
osaon b.o branch Head Office is Sasaram H.O