Pincode 604505 is a 6-digit postal code serving 7 post offices in Tiruvannamalai district, Tamil Nadu. Vallam Arni SO is the Post Office for this area, located at 12.9156°N, 79.1320°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Tiruvannamalai delivery zone.
| Post Office | Type |
|---|---|
| Vallam Arni SO | Post Office |
| Ayalpadi BO | Branch Post Office |
| Melnemili BO | Branch Post Office |
| Melpathi BO | Branch Post Office |
| Nambedu BO | Branch Post Office |
| Sengadu BO | Branch Post Office |
| Vadavanakkambadi BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Tiruvannamalai, Tamil Nadu. Map data: OpenStreetMap, CARTO.