PIN code 609402 belongs to Perambur B.O (Branch Post Office), located in Mayiladuthurai district, Tamil Nadu. It falls under the Southern Postal Region and is served by 2 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Perambur B.O | BO | Branch Post Office |
| Kiliyanur S.O (Nagapattinam) | OTHER | post office |
