Vanavasi S.O is the primary post office registered under PIN code 636457 in Salem, Tamil Nadu. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Vanavasi S.O | SO | Sub Post Office |
| Periavanavasi B.O | BO | Branch Post Office |
| Sanarapatti B.O | BO | Branch Post Office |
