Pincode 603306 · Chengalpattu District · Tamil Nadu
| Name | Unamalai BO |
| Type | Branch Post Office |
| Pincode | 603306 |
| Taluk | Chengalpattu Division |
| District | |
| State | |
| Coordinates | 12.5102, 79.8849 |
| Post Office | Type |
|---|---|
| Branch Post Office | |
| Post Office | |
| Branch Post Office |
Chengalpattu, Tamil Nadu. Map data: OpenStreetMap, CARTO.
| Murugambakkam BO | Branch Post Office |
| New Mambakkam BO | Branch Post Office |
| Pakkam BO | Branch Post Office |
| Perumbakkam BO | Branch Post Office |
| Senguntharpettai SO | Post Office |
| Thatchur BO | Branch Post Office |
| Veeranakunnam BO | Branch Post Office |