In Chengalpattu district, Tamil Nadu, PIN code 603308 is anchored by Isur BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 8 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Isur BO | BO | Branch Post Office |
| Tiruvandavar BO | BO | Branch Post Office |
| Kallabiranpuram BO | BO | Branch Post Office |
| Kolampakkam BO | BO | Branch Post Office |
| Palayanur BO | BO | Branch Post Office |
| Padalam SO | SO | Sub Post Office |
| Budur BO | BO | Branch Post Office |
| Bukkathurai BO | BO | Branch Post Office |
