Kayarambedu BO is the primary post office registered under PIN code 603202 in Chengalpattu, Tamil Nadu. This code sits within the Southern Postal Region, with 8 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kayarambedu BO | BO | Branch Post Office |
| Madambakkam BO | BO | Branch Post Office |
| Kannivakkam BO | BO | Branch Post Office |
| Thangappapuram BO | BO | Branch Post Office |
| Guduvancheri SO | SO | Sub Post Office |
| Karanaipuduchery BO | BO | Branch Post Office |
| Adhanur B.O | BO | Branch Post Office |
| KUMIZHI BO | BO | Branch Post Office |
