In Chengalpattu district, Tamil Nadu, PIN code 603314 is anchored by Malaivaiyavur SO, a Sub Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 6 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Malaivaiyavur SO | SO | Sub Post Office |
| Kattiampandal BO | BO | Branch Post Office |
| Perungozhi BO | BO | Branch Post Office |
| Vellaputhur BO | BO | Branch Post Office |
| Vedanthangal BO | BO | Branch Post Office |
| Pulithivakkam BO | BO | Branch Post Office |
