Kolapakkam BO is the primary post office registered under PIN code 600127 in Chengalpattu, Tamil Nadu. This code sits within the Southern Postal Region, with 6 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kolapakkam BO | BO | Branch Post Office |
| Kolathur BO | BO | Branch Post Office |
| Ponmar BO | BO | Branch Post Office |
| Mambakkam BO | BO | Branch Post Office |
| Nallambakkam BO | BO | Branch Post Office |
| Melakkottaiyur SO | SO | Sub Post Office |
