Pincode 603001 — Tiruvallur, Tamil Nadu
5 post offices served by pincode 603001.
| Post office | City |
|---|---|
| Alagesa Nagar | Tiruvallur |
| Chengalpattu H O | Chengalpattu |
| Chengalpattu Medical College | Chengalpattu |
| Chengalpattu R S | Chengalpattu |
| Melamaiyur Cpt | Tiruvallur |