Kalavai Sub-Center
| Hospital Name | Kalavai Sub-Center |
| Address | Health Sub Centre |
| Address Line2 | Kathur Main Road, Katchur |
| Location | Poondi |
| Phone No. | N. A. |
| Mobile No. | N. A. |
| Facility | SubCentre |
| State | Tamil Nadu |
| District | Thiruvallur |
| Taluka | Thiruvallur |
| Block | Poondi |
| GPS Location | Latitude: 13.2808 |
| Longitude: 79.9001 |
Kalavai Sub-Center hospital is a SubCentre in Poondi. It is located in Thiruvallur district of Tamilnadu state. The GPS Location of this hospital is shown in the map below.