Hargovindpur BO is the primary post office registered under PIN code 844501 in Vaishali, Bihar. This code sits within the Eastern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Hargovindpur BO | BO | Branch Post Office |
| Harpur Fatikwara BO | BO | Branch Post Office |
| Karnauti BO | BO | Branch Post Office |
| Marai BO | BO | Branch Post Office |
| Basudeopur Chandel SO | SO | Sub Post Office |
| Supaul BO | BO | Branch Post Office |
| Sarmastpur BO | BO | Branch Post Office |
