PIN code 601101 – Thiruvallur, Tamil Nadu
601101 is the PIN code of 4 post offices in Thiruvallur district, Tamil Nadu, served by the Arni CPT SO sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Arni CPT SOMap | Post office | Yes | Tambaram Division |
| Panayancheri BOMap | Branch office | Yes | Tambaram Division |
| Pondavakkam BOMap | Branch office | Yes | Tambaram Division |
| Rallapadi BOMap | Branch office | Yes | Tambaram Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.