PIN code 631402 – Thiruvallur, Tamil Nadu
631402 is the PIN code of 6 post offices in Thiruvallur district, Tamil Nadu, served by the Perambakkam S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Perambakkam S.OMap | Post office | Yes | Kanchipuram Division |
| Kilacheri B.OMap | Branch office | Yes | Kanchipuram Division |
| Kondancheri B.OMap | Branch office | Yes | Kanchipuram Division |
| Kuvam B.OMap | Branch office | Yes | Kanchipuram Division |
| Mappedu B.OMap | Branch office | Yes | Kanchipuram Division |
| Narasingapuram 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.