Established in 1975, M.N. Orthopaedic Hospital stands out as the seniormost Orthopedic Hospital in Chennai. Founded by Prof. M. Natarajan, who was heading the Ortho Dept. in the premier Govt. General Hospital and Madras Medical College for 19yrs. from 1957 to 1976. During his tenure in public service he was responsible for the holistic development of the speciality with starting the Diploma and Master degree in orthopedic surgery , School of physiotherapy , School of Orthotist and Prosthetist. He submitted a master plan for the Rehab.& Artificial Limb Center and the Accidental and Emergency Services for Tamil Nadu State. This was accepted and implemented by the Govt. ​