S Murugaia, born on October 9, 1957, is a retired Indian Administrative Service officer from the 1998 Tamil Nadu cadre. A graduate by education, he served in various capacities including District Collector, Deputy Commissioner, Joint Commissioner, Joint Secretary, Additional Secretary Director, Inspector General Director, and Transport Commissioner Director. His most recent position was Commissioner and Director at the Social Welfare Department, Tamil Nadu, from June 26, 2016, to April 11, 2017. Throughout his career, he contributed to multiple administrative roles within the Tamil Nadu government.