In Palakkad district, Kerala, PIN code 678731 is anchored by Palakkad Industrial Estate BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 2 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Palakkad Industrial Estate BO | BO | Branch Post Office |
| Puduppariyaram SO | SO | Sub Post Office |
