There are 13 post offices under PIN code 631210.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Athipattu B.O | Branch Office | Delivery | Tirutani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Chinnammapet B.O | Branch Office | Delivery | Na | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Harichandrapuram B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Kaverirajapuram B.O | Branch Office | Delivery | Na | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Kunnavalam B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Kurmavilasapuram B.O | Branch Office | Delivery | Na | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Mannur B.O | Branch Office | Delivery | Na | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 8 | Pakasala B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 9 | Palayanur B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 10 | Peddakalakattur B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 11 | Tiruvelangadu S.O | Sub Office | Delivery | Tirutani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 12 | Veeraraghavapuram B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |
| 13 | Vyasapuram B.O | Branch Office | Delivery | Tiruttani | Tiruvallur | Kanchipuram | Chennai Region | Tamil Nadu | Tamilnadu |