PIN code 685533 belongs to Arnakal BO (Branch Post Office), located in Idukki district, Kerala. It falls under the Southern Postal Region and is served by 14 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Arnakal BO | BO | Branch Post Office |
| Chottupara Periyar BO | BO | Branch Post Office |
| Dymock BO | BO | Branch Post Office |
| Pampa Dam BO | BO | Branch Post Office |
| Mount BO | BO | Branch Post Office |
| Gramby BO | BO | Branch Post Office |
| Moongalar BO | BO | Branch Post Office |
| Vallakadavu Periyar BO | BO | Branch Post Office |
| Wallardie BO | BO | Branch Post Office |
| Chenkara BO | BO | Branch Post Office |
| Gavi BO | BO | Branch Post Office |
| Keerikara BO | BO | Branch Post Office |
| Thengakal BO | BO | Branch Post Office |
| Vandiperiyar SO | SO | Sub Post Office |
