There are 3 post offices under PIN code 631213.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Alamelumangapuram B.O | Branch Office | Delivery | Trutani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Ponpadi B.O | Branch Office | Non-Delivery | Tirutani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Ponpadi Rs S.O | Sub Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |