What are the two social division groups of Srilanka ? Share with your friends Share 0 Nkdklklkjks Hhaha answered this The two social groups of Sri Lanka are: Sinhala and Sri Lankan Tamils!! Regards. 0 View Full Answer Romil Jayswal answered this Sinhalas and Tamils 0 Muntasir answered this The two social groups of Srilanka are based on religion and linguistics ( language ) 0