Nandini written update, September 12, 2018: Arun gives a strange condition to Ganga

In the latest episode of Nandini, Seiya Nayagi enters the palace with his daughters Ganga and Nandini. Seiya Nayagi meets Arun and says that he (Arun) tried his best to convey the truth to Ganga.
Ganga says that she didn't believe him. Ganga adds now that she has reunited with her father Seiya Nayagi and sister Nandini.
Seiya Nayagi, Ganga and Nandini are very happy after the reunion.Ganga asks Arun to welcome her family members too. But Arun asks Ganga to enter the palace alone and doesn’t invite Seiya Nayagi and Nandini.
Ganga gets shocked by his action and asks the reason. Arun says that if Ganga feels that their relationship is meaningful, then she can't continue her relationship with her father and sister. Or else she can go out with Seiya Nayagi and Nandini.
Seiya Nayagi gets shocked by his behaviour and asks the reason behind the same.
To everyone's shock Arun asks Seiya Nayagi and Nandini to get out of the palace. Seiya Nayagi tells Nandini to take care of her married life.
Seiya Nayagi says he has dedicated his life to lord Karuppar and Nandini has dedicated her life to Kaattu Amman. In this situation, even Seiya Nayagi and Nandini might not be able to continue the family bonding.
Arun performs a special puja for his dad Rajashekar. An unknown person enters the palace and tells Arun that his sister was married to Rajashekar.