Pincode 603309 is a 6-digit postal code serving 5 post offices in Chengalpattu district, Tamil Nadu. Polambakkam SO is the Post Office for this area, located at 12.4102°N, 79.8875°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Chengalpattu delivery zone.
| Post Office | Type |
|---|---|
| Polambakkam SO | Post Office |
| Chitrvadi BO | Branch Post Office |
| Mugundagiri BO | Branch Post Office |
| Paiyambadi BO | Branch Post Office |
| Perukkaranai BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Chengalpattu, Tamil Nadu. Map data: OpenStreetMap, CARTO.