Tiruvidaikali B.O is the primary post office registered under PIN code 609310 in Mayiladuthurai, Tamil Nadu. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Tiruvidaikali B.O | BO | Branch Post Office |
| Sendamangalam B.O | BO | Branch Post Office |
| Tillaiyadi S.O | SO | Sub Post Office |
