Kasam-Tere Pyar Ki starts with Rano dropping Tanya at the school while Tanuja (Kratika Sengar) too drops Natasha at school. Rano lies to Natasha that Tanuja has some work so she can accompany Rano to their house today. Natasha goes on with Tanya and Rano. Raj meets the kids at house and he realises that Rano has brought Natasha home without telling Tanuja about it. Raj asks Rano to call Tanuja but she refuses to do so and also gives Raj a vow to bind him so he does not call as well. Rishi (Sharad Malhotra) reaches Tanuja’s house and asks Tanuja why she is sacred and she says she will not give Natasha to him, he promises her that he has no intention of separating her from Natasha. He says he just wants to be acknowledged as her father and does not want to be away from her. Tanuja refuses to accept the fact that Rishi is Natasha’s father and Rishi produces the DNA reports. Tanuja finally acknowledges the fact but asks him where he was when she was taking birth. (Also Read: Rishi reveals to the family that Natasha is his child)
Tanuja tells him that she knew she was pregnant when she was on the train and she wanted to come back to him but then she remembered that he and Netra were together. Rishi refuses to listen to any of her arguments and leaves by saying he will not be separated from Natasha anymore. Biji meets Natasha and guesses that Rano has stolen her away without telling Tanuja. Rano reaches Tanuja and confronts her about hiding Natasha. Tanuja asks her where she was when she had made Tanuja leave the house in the middle of the night. Rano warns her to stay away from Natasha and locks Tanuja in her own house as she walks away saying Natasha will remain with them from now on. Abhishek walks in to find Tanuja crying and gets angry at knowing that Natasha has been taken away. Tanuja then adds to tells him that Natasha is actually Rishi’s child and that Rishi and she have a past together. Abhishek stops her from apologising and promises to stand by her throughout and promises to bring back Natasha.
Precap: Tanuja makes Rishi promise that he will not take Natasha away from her