PIN code 631203 – Thiruvallur, Tamil Nadu
631203 is the PIN code of 10 post offices in Thiruvallur district, Tamil Nadu, served by the Kadambathur S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Kadambathur S.OMap | Post office | Yes | Kanchipuram Division |
| Egattur B.OMap | Branch office | Yes | Kanchipuram Division |
| Kaivandur B.OMap | Branch office | Yes | Kanchipuram Division |
| Pandur B.OMap | Branch office | Yes | Kanchipuram Division |
| Pattaraiperumbudur B.OMap | Branch office | Yes | Kanchipuram Division |
| Pudumavilangai B.OMap | Branch office | Yes | Kanchipuram Division |
| Selai B.OMap | Branch office | Yes | Kanchipuram Division |
| Senji B.OMap | Branch office | Yes | Kanchipuram Division |
| Tirupasur B.OMap | Branch office | Yes | Kanchipuram Division |
| Vidaiyur B.OMap | Branch office | Yes | Kanchipuram Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.