Adamangalam SO is the primary post office registered under PIN code 606901 in Tiruvannamalai, Tamil Nadu. This code sits within the Southern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Adamangalam SO | SO | Sub Post Office |
| Kanthapalayam BO | BO | Branch Post Office |
| Viralur BO | BO | Branch Post Office |
| Kidampalayam BO | BO | Branch Post Office |
| Gangavaram BO | BO | Branch Post Office |
| Kettavarampalayam BO | BO | Branch Post Office |
| Melsolankuppam BO | BO | Branch Post Office |
