Post Office Karkain B.o Pin Code In Ghoswari State Bihar District Patna
| Post Office | Karkain B.o |
| Division | Monghyr |
| Region | Patna Hq |
| Circle | Bihar |
| Taluka | Ghoswari |
| District | Patna |
| State | Bihar |
| Phone | NA |
| Sub Office | Sarmera S.O |
| Head Office | Munger H.O |
| Pincode | 811104 |
karkain b.o branch pincode is 811104
karkain b.o branch phone number is NA
karkain b.o branch Head Office is Munger H.O