In Kottayam district, Kerala, PIN code 686540 is anchored by Karukachal SO, a Sub Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 4 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Karukachal SO | SO | Sub Post Office |
| Koothrappally BO | BO | Branch Post Office |
| Champakara BO | BO | Branch Post Office |
| Chelacompu BO | BO | Branch Post Office |
