There are 10 post offices under PIN code 603108.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Hanumanthapuram B.O | Branch Office | Delivery | Chengalpattu Taluk | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Kalvoy B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Karumbakkam B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Kottamedu B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Madayathur B.O | Branch Office | Delivery | Tirukalikundram | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Melaiyur B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Nellikuppam B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 8 | Sembakkam S.O | Sub Office | Delivery | Tirukalikundram | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 9 | Senneri B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 10 | Sirunkundram B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |