Post Office Derwan B.o Pin Code In Kudra State Bihar District Bhabua
| Post Office | Derwan B.o |
| Division | Rohtas |
| Region | Patna Hq |
| Circle | Bihar |
| Taluka | Kudra |
| District | Kaimur (bhabua) |
| State | Bihar |
| Phone | NA |
| Sub Office | Kudra S.O |
| Head Office | Sasaram H.O |
| Pincode | 821108 |
derwan b.o branch pincode is 821108
derwan b.o branch phone number is NA
derwan b.o branch Head Office is Sasaram H.O