PIN code 603312 belongs to KNelvoy BO (Branch Post Office), located in Chengalpattu district, Tamil Nadu. It falls under the Southern Postal Region and is served by 8 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| KNelvoy BO | BO | Branch Post Office |
| Iranyasidhi BO | BO | Branch Post Office |
| Anaicut BO | BO | Branch Post Office |
| Kalkulam BO | BO | Branch Post Office |
| Lathur BO | BO | Branch Post Office |
| Palur BO | BO | Branch Post Office |
| Seevadi BO | BO | Branch Post Office |
| Pavunjur SO | SO | Sub Post Office |
