PIN code 631209 – Thiruvallur, Tamil Nadu
631209 is the PIN code of 11 post offices in Thiruvallur district, Tamil Nadu, served by the Tiruttani S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Tiruttani S.OMap | Post office | Yes | Kanchipuram Division |
| Tiruttanieast S.O | Post office | No | Kanchipuram Division |
| Agooru B.OMap | Branch office | Yes | Kanchipuram Division |
| Murukkambattu B.OMap | Branch office | Yes | Kanchipuram Division |
| Netterikandigai B.OMap | Branch office | Yes | Kanchipuram Division |
| Pattabiramapuram B.OMap | Branch office | Yes | Kanchipuram Division |
| Srinivasapuram B.OMap | Branch office | Yes | Kanchipuram Division |
| Suryanagaram B.OMap | Branch office | Yes | Kanchipuram Division |
| Tirutani Hills B.OMap | Branch office | No | Kanchipuram Division |
| Upper Tirutani B.OMap | Branch office | No | Kanchipuram Division |
| Velanjeri 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.