Pincode 603203 is a 6-digit postal code serving 3 post offices in Chengalpattu district, Tamil Nadu. Kattankolathur SO is the Post Office for this area, located at 13.3678°N, 80.0706°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Chengalpattu delivery zone.
| Post Office | Type |
|---|---|
| Kattankolathur SO | Post Office |
| Kavanur BO | Branch Post Office |
| Ninnakarai 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.