PIN code 691503 belongs to Padappakara BO (Branch Post Office), located in Kollam district, Kerala. It falls under the Southern Postal Region and is served by 4 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Padappakara BO | BO | Branch Post Office |
| Mulavana SO | SO | Sub Post Office |
| Mukkoodu BO | BO | Branch Post Office |
| Kumbalam BO | BO | Branch Post Office |
