Parvathy asks Nandhini to kill all the murderers and their whole family. One day Rajashekar and his friends namely Namboothiri ( Vinod), Vichu, Kumar, and Madhavi ( Vanishree) deceived Parvathy and kills her and Muniappa's family and takes the three kaal chakras. Parvathy and Nandhini were living a peaceful life as devotees of Kaatu Amman with Muniappa ( Narasimha Raju) and his family until when Rajashekar ( Vijayakumar) and his group arrives to acquire the 'Kala Chakras' for profit. Then rathnavel changes his name to 'Seyanayagi' and continues to live for the god Karuppar.
Later rathnavel forgets everything and has gives Ganga to the housemaid of the palace, Manickam who doesn't have a children and thinks that Ganga is his daughter and Ganga grows up in the palace. In order to save her husband, Parvathy transforms him into a transgender called so that her clans wouldn't kill him and gives Ganga to him.
Nandini inherited the snake quality and Ganga inherited human quality.
She gave birth to two twin girls- 'Nandini' and 'Ganga'. The story of the serial starts as a man named, Rathnavel ( Riyaz Khan) falls in love with a mysterious girl, who is a shapeshifting snake named, Parvathy ( Khushbu) and they both get married.
