In Yeh Hai Mohabbatein, the Bhalla house is brimming with joy with Aliya’s (Krishna Mukherjee) pooja going on. Mani ( Sumeet Sachdev) gets a call and goes out to attend, meanwhile Mihika(Avantika Hundal) conducts the pooja on behalf of Aliya’s bua and Bala (Pankaj Bhatia) conducts pooja on behalf of Aliya’s mama. Ruhi (Aditi Bhatia) comes and rudely asks Aliya to make tea for her. All the family members are stunned, Pihu asks Ruhi why is she being rude with Aliya Bhabhi. Ruhi says this is how sister-in-laws should be and even Pihu (Ruhaanika Dhawan) should learn to dominate her Bhabhi. Later she breaks down laughing saying she tried to act so well but cannot hold on. Pihu says she is a poor actor.
Ruhi gifts Aliya a pair of earrings. She says she was scared as a kid to pierce her ears and Adi had come with her for it and distracted her till the piercing was done. She says these earring have all the memories attached to it. She also adds that she loves Adi (Abhishek Verma) very much and is sorry for misbehaving during the past few days. Aliya replies saying she still loves her and she does not need to say sorry.
They plan Adi and Aliya’s Sangeet with vigour and excitement. Romi (Aly Goni) gets Adi’s call and hands it over to Aliya. Aliya tries to talk and goes out to hear well. The stalker who is present inside comes up from behind and stuns her. She screams as the man tries to speak to her. Everyone comes rushing outside and the man runs away. The watchman stops the man at the gate and Romi, Bala with Raman catch hold of him and hit him. The man says they are misunderstanding him, Raman recognises the man as being the new guard at their office. He realises that he was probing into Aliya the other day when Raman spoke to him. Ishita (Divyaanka Tripati) comes there and asks Raman (Karan Patel) to inform the police. They all have an argument about calling the police, between which the man runs away in a tempo carrier nearby.
Ishita gets a ‘Taali’ or mangalsutra lying down fallen from the man’s hands. She also sees the man has a false beard which has come out while running, she happens to see his real face when he is running away. She tries to tell Raman and the others about this, that is when Ruhi points out Adi arriving. They all become quiet as he comes in, as they do not want to upset him with this new turn of events. They take him inside and Ishita asks Aliya to behave normal in front of Adi as the project is very important for him. They welcome Adi inside. Raman goes away to make a police complaint.
In the evening Ishita tries to talk to Raman about the mangalsutra and beard but Raman distracts her as he does not want her brooding over this. Ruhi arrives in time and tells them she wants to do something special for Aliya and Adi during their Sangeet. Raman asks them to discuss while he goes out. Ruhi tells Ishita she wants to make an AV presentation with all the photographs depicting entire life of Adi. She asks Ishita for all the old pictures. Ishita says the old pictures are at Amma’s house and they should go there to sort it out.
They go and get the pictures out and start going through them. They reminisce all the old times together as they go through the pictures. They happily discuss Mani’s old look and how girls hovered over him when he used to come and meet Ishita. While going through, Ishita suddenly stops seeing one picture and her expression become grave, Ruhi notices the change and asks her what happened. Ishita distracts her and carries the picture and goes out.
She goes to a sleeping Raman and wakes him and asks him to quietly come out with her. Though hesitant Raman relents finally. Meanwhile Ruhi and Adi laugh at Mani’s old pictures and send them to Aliya. They call Aliya and together the children have a good laugh about this. It is then that the door bell rings and Aliya goes out to find who it is, Adi says he would hold on. Adi, Ruhi and Aliya are surprised to know that the midnight visitors are Ishita and Raman. Ishita tells Mani that she needs to know where Aliya’s father is. Ruhi and Adi are confused about why Ishita would visit Mani that time when she had told Ruhi that she was going to sleep. Ruhi tells Adi that Ishita had a change of demeanour when she saw something in one of the pictures.