There are 6 post offices under PIN code 631402.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kilacheri B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Kondancheri B.O | Branch Office | Delivery | Na | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Kuvam B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Mappedu B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Narasingapuram B.O | Branch Office | Delivery | Sriperumbudur | Kanchipuram | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Perambakkam S.O | Sub Office | Delivery | Sriperumbudur | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |