Post Office Bihar S.o Pin Code In Bihar State Uttar Pradesh District Na
| Post Office | Bihar S.o |
| Division | Kanpur Moffusil |
| Region | Kanpur |
| Circle | Uttar Pradesh |
| Taluka | Bihar |
| District | Unnao |
| State | Uttar Pradesh |
| Phone | 05142-249255 |
| Sub Office | NA |
| Head Office | Unnao H.O |
| Pincode | 209866 |
bihar s.o branch pincode is 209866
bihar s.o branch phone number is 05142-249255
bihar s.o branch Head Office is Unnao H.O