Urain BO is the primary post office registered under PIN code 811309 in Lakhisarai, Bihar. This code sits within the Eastern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Urain BO | BO | Branch Post Office |
| Sri Kishun B.O | BO | Branch Post Office |
| Lai BO | BO | Branch Post Office |
| Kajra SO | SO | Sub Post Office |
| Pawai BO | BO | Branch Post Office |
| Pokhrama BO | BO | Branch Post Office |
| Arma BO | BO | Branch Post Office |
