Arumugam obtained B.Sc. (Hort.), M.Sc. (Hort.) and Ph.D. from TNAU and took part in higher training opportunities viz., Postharvest technology of fruits at the Indian Agricultural Research Institute (IARI), New Delhi and Postharvest technology of vegetables at the University of California - Davis, USA.
He is a trained vegetable breeder and postharvest specialist and developed many vegetable cultivars and technologies. He served as Head of the Research Centre and Dean of Agricultural College. Currently he is serving as Head of the Department of Vegetable Crops, TNAU, Coimbatore.