Pudupakkam BO is the primary post office registered under PIN code 603103 in Chengalpattu, Tamil Nadu. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Pudupakkam BO | BO | Branch Post Office |
| Padur SO | SO | Sub Post Office |
| Kelambakkam SO | SO | Sub Post Office |
