| Post Office | Arwan B.o |
| Division | Singhbhum |
| Region | Ranchi |
| Circle | Jharkhand |
| Taluka | Seraikella |
| District | Seraikela Kharsawan |
| State | Jharkhand |
| Phone | NA |
| Sub Office | Kharsawangarh S.O |
| Head Office | Chaibasa H.O |
| Pincode | 833216 |
=$city?> arwan b.o branch pincode is 833216
arwan b.o branch phone number is NA
arwan b.o branch Head Office is Chaibasa H.O