- District-wise Number of Healthcare Centres (Sub-Centres, Primary and Community Health Centres) at Rural Areas in Tamil Nadu (As on March, 2011)
- District-wise Number of Healthcare Centres (Sub-Centres, Primary and Community Health Centres) at Rural Areas in Tamil Nadu (As on March, 2010)
- District-wise Number of Healthcare Centres (Sub-Centres, Primary and Community Health Centres) at Rural Areas in Tamil Nadu (As on March, 2009)