PIN code 631303 – Thiruvallur, Tamil Nadu
631303 is the PIN code of 4 post offices in Thiruvallur district, Tamil Nadu, served by the Ramakrishnarajupeta S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Ramakrishnarajupeta S.OMap | Post office | Yes | Kanchipuram Division |
| Adivaragapuram B.OMap | Branch office | Yes | Kanchipuram Division |
| Ammaneri B.OMap | Branch office | Yes | Kanchipuram Division |
| Veeranathur 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.