Kalvilai Sub-Center
| Hospital Name | Kalvilai Sub-Center |
| Address | Hsc |
| Address Line2 | |
| Location | Kalvilai |
| Phone No. | N. A. |
| Mobile No. | N. A. |
| Facility | SubCentre |
| State | Tamil Nadu |
| District | Thoothukudi |
| Taluka | Tiruchendur |
| Block | Udankudi |
| GPS Location | Latitude: 8.48886 |
| Longitude: 77.9717 |
Kalvilai Sub-Center hospital is a SubCentre in Udankudi. It is located in Thoothukudi district of Tamilnadu state. The GPS Location of this hospital is shown in the map below.