Mahesan Kasirajan, born on 25 September 1962, is a retired Indian Administrative Service officer from the 2000 batch, Tamil Nadu cadre. Throughout his career, he held multiple key positions including District Collector, Deputy Secretary, Managing Director, and Director in various departments. His most recent role was Commissioner in the Industries Department, a position he assumed on 17 February 2016. Kasirajan's extensive service in administrative roles reflects his long-standing commitment to public administration in Tamil Nadu.