The Dumrawan So Post Office is a government office that provides postal services, including mail delivery, postage stamp sales, speed post in one day delivery and services. Mail and packages can be dropped off at a post office or designated collection box, and stamps can be purchased at the post office or online.
| Post Office | Dumrawan So |
| Division | Nawadha |
| Region | Patna Hq |
| Circle | Bihar |
| Taluka | Pakribrawana |
| District | Nawada |
| State | Bihar |
| Phone | 800-2330075 |
| Sub Office | Na |
| Head Office | Nawadha H.o |
| Pincode | 805132
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dumrawan so branch pincode is 805132
dumrawan so branch phone number is 800-2330075
dumrawan so branch Head Office is Nawadha H.o