PIN code 690540 belongs to Karimthottuva BO (Branch Post Office), located in Kollam district, Kerala. It falls under the Southern Postal Region and is served by 3 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Karimthottuva BO | BO | Branch Post Office |
| Thuruthikara BO | BO | Branch Post Office |
| Kunnathur East SO | SO | Sub Post Office |
