Sikandarpur BO is the primary post office registered under PIN code 845434 in Purbi Champaran, Bihar. This code sits within the Eastern Postal Region, with 6 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Sikandarpur BO | BO | Branch Post Office |
| Bariariya BO | BO | Branch Post Office |
| Manglapur Rajpur BO | BO | Branch Post Office |
| Puchharia BO | BO | Branch Post Office |
| Thikaha Bhawanipur BO | BO | Branch Post Office |
| Sangrampur SO East Champaran | OTHER | post office |