In Tiruvannamalai district, Tamil Nadu, PIN code 604502 is anchored by Melachery BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 6 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Melachery BO | BO | Branch Post Office |
| Endal BO | BO | Branch Post Office |
| Kadambai BO | BO | Branch Post Office |
| Malayur SO | SO | Sub Post Office |
| Kandavaratti BO | BO | Branch Post Office |
| Matam BO | BO | Branch Post Office |
