In Karaikal district, Puducherry, PIN code 609602 is anchored by Karaikal S.O, a Sub Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 5 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Karaikal S.O | SO | Sub Post Office |
| Karaikal South S.O | SO | Sub Post Office |
| Dharmapuram B.O | BO | Branch Post Office |
| Karaikal Bazaar S.O | SO | Sub Post Office |
| Madagadi B.O | BO | Branch Post Office |
