Anthropologist M.D. Raghavan who started the study of rural life in Kerala and earned international fame was a resident of Chettamkunnu in Thalassery. He completed his studies from Brennen College and Aloshia college in Mangalore and then started working as Curator in Egmore Museum in Madras. At this time he was selected for higher studies in Anthropology by Oxford University. On his return he was made a member of the Baronvon Iksarad Team, appointed to study about the tribals of Vayanad. He has also served as the Chairman of the Anthropology Wing in Madras University.
In 1946 he was appointed ethnologist by the Srilankan government. He studied the minorities in Srilanka and also served as the Chairman of the organisation formed for the betternment of Schedule Caste. He has also written several books including fok plays and dances of Kerala, Traditional arts of India and cultural change. He also studied the Chellath cave paintings in Thalassery.