PIN code 603401 – Chengalpattu, Tamil Nadu
603401 is the PIN code of 6 post offices in Chengalpattu district, Tamil Nadu, served by the Chunampet SO sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Chunampet SOMap | Post office | Yes | Chengalpattu Division |
| Andarkuppam BOMap | Branch office | Yes | Chengalpattu Division |
| Kadukkalur BOMap | Branch office | Yes | Chengalpattu Division |
| Puthirankottai BOMap | Branch office | Yes | Chengalpattu Division |
| Vannianallur BOMap | Branch office | Yes | Chengalpattu Division |
| Velur BOMap | Branch office | Yes | Chengalpattu Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.