There are 3 post offices under PIN code 606001.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Vriddhachalam Bazaar S.O | Sub Office | Non-Delivery | Virudhachalam | Cuddalore | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Vriddhachalam Cutchery S.O | Sub Office | Non-Delivery | Virudhachalam | Cuddalore | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Vriddhachalam H.O | Head Office | Delivery | Vriddhachalam | Cuddalore | Vriddhachalam | Tiruchy | Tamil Nadu | Tamilnadu |