The National Institute of Siddha (NIS), located in Chennai, is a center of excellence with research and higher education in Siddha System of Medicine. Located on a sprawling campus in Tambaram Sanatorium, the NIS project is a perfect example of Central and State Government co-operation. The capital cost has been shared by the Government of India and Government of Tamil Nadu in the ratio of 60 : 40 and the recurring expenditure has been shared in the ratio of 75 : 25 for first five years. This Institute is affiliated to The TN.Dr.M.G.R.Medical University, Chennai and the Syllabus and Curriculum are in accordance with the Central Council of Indian Medicine, New Delhi. 

The campus is eco-friendly. This is an exceptional project to have created a man-made pond in our institutional premises as a water conservation measure. A sewage recycling plant provides water for the herbal garden. It is proposed to develop the hillock behind the campus into a grove of medicinal plants. The National Institute of Siddha has excellent infrastructure, dedicated and highly knowledgeable faculty members and bright students. This Institute is poised to reclaim the glory of Siddha System so that the system can play a major role globally in the field of health care.