Pincode 631303 is a 6-digit postal code serving 4 post offices in Thiruvallur district, Tamil Nadu. Ramakrishnarajupeta S.O is the Post Office for this area, located at 13.1646°N, 79.4390°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Thiruvallur delivery zone.
| Post Office | Type |
|---|---|
| Ramakrishnarajupeta S.O | Post Office |
| Adivaragapuram B.O | Branch Post Office |
| Ammaneri B.O | Branch Post Office |
| Veeranathur B.O | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Thiruvallur, Tamil Nadu. Map data: OpenStreetMap, CARTO.