Udaypur Bithwar BO is the primary post office registered under PIN code 847231 in Madhubani, Bihar. This code sits within the Eastern Postal Region, with 6 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Udaypur Bithwar BO | BO | Branch Post Office |
| Bhour BO | BO | Branch Post Office |
| Lohat SO | SO | Sub Post Office |
| Gadhiya BO | BO | Branch Post Office |
| Shahpur BO | BO | Branch Post Office |
| Gurmaha BO | BO | Branch Post Office |
