Worked as Director & Professor, ICM, at Madras Medical College, Tamilnadu, teaching UG and PG medical students in Medicine, Epidemiology, and guiding research projects. Qualified MD, DPH, DPM, MBBS, under TN Medical University. He was a Consultant and Co-Researcher with UNICEF (IMNCI), AIIMS, New Delhi. Engaged in Health Management services for DANIDA (RCH), and WORLD BANK (ICDS III project), also worked as Technical Advisor for AIDS control programs. He also published Research articles in various national and International Journals. Life Member of INCLEN (International Clinical Epidemiological Network) and took responsibilities as Honourable Secretary, and then President for INDIA CLINICAL EPIDEMIOLOGICAL NETWORK, and Life Member of the Indian Public Health Association.