Pin code 601101
4 post offices in Thiruvallur, Tamil Nadu use pin code 601101.
| Post office | Type | Division |
|---|---|---|
| Arni Cpt | PO | Tambaram Division |
| Panayancheri | BO | Tambaram Division |
| Pondavakkam | BO | Tambaram Division |
| Rallapadi | BO | Tambaram Division |
What 601101 tells you
The first digit, 6, is the postal zone. The first two digits, 60, are the postal circle. The first three, 601, are the sorting district, and 101 identifies the delivery office.