• (A) Sangam literature mentions three regular varnas, namely, Brahmins, Kshatriyas and Vaisyas
• (B) There were four castes, namely, Tudiyan, Panan, Paraiyan and Kadamban
• (C) People were organized in professional social groups living apart from one-another
• (D) The difference in the status and economic conditions was well accepted and rarely challenged by the people