In Chengalpattu district, Tamil Nadu, PIN code 603104 is anchored by Kokilamedu BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 9 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Kokilamedu BO | BO | Branch Post Office |
| Perur BO | BO | Branch Post Office |
| Mamallapuram SO | SO | Sub Post Office |
| Pattipulam BO | BO | Branch Post Office |
| Poonjeri BO | BO | Branch Post Office |
| Koothavakkam BO | BO | Branch Post Office |
| Zamin Paiyanur BO | BO | Branch Post Office |
| Kadambadi BO | BO | Branch Post Office |
| Vadakadambadi BO | BO | Branch Post Office |
