Paiyur BO is the primary post office registered under PIN code 632317 in Tiruvannamalai, Tamil Nadu. This code sits within the Southern Postal Region, with 9 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Paiyur BO | BO | Branch Post Office |
| Velleri BO | BO | Branch Post Office |
| Irumbedu BO | BO | Branch Post Office |
| Meyyur BO | BO | Branch Post Office |
| Molugampoondi BO | BO | Branch Post Office |
| VelapadiArni BO | BO | Branch Post Office |
| Mamandur BO | BO | Branch Post Office |
| Sathiyaviziyanagaram SO | SO | Sub Post Office |
| Adanur BO | BO | Branch Post Office |
