In Darjeeling district, West Bengal, PIN code 734423 is anchored by Nipania BO, a Branch Post Office. Mail addressed to this code is sorted through the Eastern Postal Region, across 4 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Nipania BO | BO | Branch Post Office |
| Pani Ghatta BO | BO | Branch Post Office |
| Belgachi SO | SO | Sub Post Office |
| Putung BO | BO | Branch Post Office |
