Hathura BO is the primary post office registered under PIN code 841237 in Siwan, Bihar. This code sits within the Eastern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Hathura BO | BO | Branch Post Office |
| Bhikhpur BO | BO | Branch Post Office |
| Hussainganj SO | SO | Sub Post Office |
| Ballia BO | BO | Branch Post Office |
| Machakna BO | BO | Branch Post Office |
