Agharkar Research Institute (ARI) is an autonomous, grant-in-aid research institute of the Department of Science and Technology (DST), Goverment of India. It was established in 1946 by the Maharashtra Association for the Cultivation of Science as MACS Research Institute and renamed as ARI in 1992 in honour and memory of its founder Director, late Professor S.P. Agharkar.
This Institute started as “Occupational Health Research Institute” (OHRI) in the year 1966 and was re-christened as “National Institute of Occupational Health” (NIOH) in 1970 presently located in the Eastern part of Ahmedabad. Two Regional Occupational Health Centers (ROHCs) were started at Bangalore in 1977 and at Kolkata in 1980.