PIN code 603201 belongs to Kattukaranai BO (Branch Post Office), located in Chengalpattu district, Tamil Nadu. It falls under the Southern Postal Region and is served by 5 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Kattukaranai BO | BO | Branch Post Office |
| Madhur BO | BO | Branch Post Office |
| Padiri BO | BO | Branch Post Office |
| Ramapuram BO | BO | Branch Post Office |
| Elapakkam SO | SO | Sub Post Office |
