Abivirthiswaram B.O is the primary post office registered under PIN code 613705 in Thiruvarur, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Abivirthiswaram B.O | BO | Branch Post Office |
| Ilaiyur B.O | BO | Branch Post Office |
| Barakadabad B.O | BO | Branch Post Office |
| Sellur S.O (Tiruvarur) | OTHER | post office |
