In Darjeeling district, West Bengal, PIN code 734426 is anchored by Gayanganga BO, a Branch Post Office. Mail addressed to this code is sorted through the Eastern Postal Region, across 7 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Gayanganga BO | BO | Branch Post Office |
| Buraganj BO | BO | Branch Post Office |
| Chitalghatta BO | BO | Branch Post Office |
| Sahabad BO | BO | Branch Post Office |
| Kalachandgach BO | BO | Branch Post Office |
| Madati BO | BO | Branch Post Office |
| Kamala Bagan SO | SO | Sub Post Office |
