In Tiruvannamalai district, Tamil Nadu, PIN code 604403 is anchored by Badur BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 10 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Badur BO | BO | Branch Post Office |
| Kottai BO | BO | Branch Post Office |
| Irumbedu BO | BO | Branch Post Office |
| Salvedu BO | BO | Branch Post Office |
| Kilnarma BO | BO | Branch Post Office |
| Ulundai BO | BO | Branch Post Office |
| Velliambakkam BO | BO | Branch Post Office |
| Kilkodungalur SO | SO | Sub Post Office |
| Adiyanur BO | BO | Branch Post Office |
| Kuvalai BO | BO | Branch Post Office |
