The aim of this article is to summarise and analyse the social divisions in early Tamilnadu. It is needed to testify the communal segregations and varnasrama extended in the geographical area of early Tamilnadu. An analytical approach is followed with the ten idylls as the primary sources. The eight anthologies, Tholkaappiyam, twin epics, commentators’ commentaries, publishers’ opinions, researchers’ findings and epigraphists’ reports serve as secondary sources. There were various social divisions which formed different communities on the basis of occupations, varnasrama and racial differences which influenced the marital relationships in early Tamilnadu.