Dear Poornima Theres a lot of debate and confusion as to who fathered mandakinis children was it Sundara Chola VeeraPandiyan Karuthiruman
Sundara chola the time frame excludes him and Kundavai and RRC still think of Nandhini as their sister because she is the daughther of the woman who their father loved#
Veerapandiyan a possibility but whatever said and done could a woman who was somuch in love with sundara chola have had an affair with another Maybe the fall from the lighthouse had caused her amnesia
Karuthiruman Did he take advantage of a hapless girl?? But he again claims he was in love with vaani amai
Kalki doesnt actually give you the answers till the end
Madhuranthagan was not born when Kanditrathithar was crowned and Sudara was crowned Ilavarasan
Sembian mAdhevi sees the pregnant Mandagini near Kodikarai when she is pregnant and brings her to Palayaarai and they both give birth the same time hence it was possible to switch the children
so according to the story Nandhini and Madhuranthagan are mandakinis chidren and Senthan is Sembian Madhevis