Kanhaipur BO is the primary post office registered under PIN code 803221 in Patna, Bihar. This code sits within the Eastern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kanhaipur BO | BO | Branch Post Office |
| Railly BO | BO | Branch Post Office |
| Lemuabad BO | BO | Branch Post Office |
| Mekra BO | BO | Branch Post Office |
| Pandarak S.O | SO | Sub Post Office |
