PIN code 609603 belongs to Nallathur B.O (Branch Post Office), located in Karaikal district, Puducherry. It falls under the Southern Postal Region and is served by 6 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Nallathur B.O | BO | Branch Post Office |
| Tirukottaram B.O | BO | Branch Post Office |
| Nedungadu S.O | SO | Sub Post Office |
| Melakasakudi B.O | BO | Branch Post Office |
| Kurumbagaram B.O | BO | Branch Post Office |
| Velangudi B.O | BO | Branch Post Office |
