Bani comes back as Durga Dasgupta, with help of Aparjit Dev. Aparjit Dev makes her hate Jai just as much as he hates him. No one knows she is alive, she has come silently but will leave a terror and take away her children. Now she is going to get married with Aparjit Dev for the sake of his mother who is dying of tumor.
Later on Pia has found about Jai and Rano about their plan and she was about to leave the house as soon Rano stopped her between and start giving her lectures.
Now after 5 years Pushkar is back to take his revenge on Jai and Pia with the help of Bani and Aparajit Dev. Aparajit Dev hates Jai Walia because he thinks Jai has killed his former wife. This is wrong and everything is soon cleared up. Bani wants her children so she says to Aparajit that she must go to Walia Mansion to get back her children, yet she will come back after thirty days. There, Bani takes control and command of the house legally and destroys Jai Walia's company. Jai lets her do this because he is secretly in love with her.
Then Rashi, who was dying of blood cancer for five years, makes a return. Ranvir, who is Rano's husband because Rashi forced them to marry knowing she will die. Rashi is Ranvir's former wife and she loves him. Ranvir only loves Rano. Rano is torn and leaves the house. Ranvir goes after her. Jigyasa, who hates Bani, Pia, and Rano, sent goons to capture Rano. Then, she makes a deal with Bani that, to get Rano back, she must give Jai Walia's everything that she had, and she, Pia, and Rano, must live in the outhouse. Bani agrees. She comes back and tells everyone they are living in the outhouse. Jai Walia now suspects something is going on. Bani makes up a plan and Jigyasa ends up signing the property papers saying that the whole property belongs to Durga Dasgupta.
Durga makes the whole Walia family leave the house. Walia family move into a chawl. Durga and Rano live in Walia house. On Aparajit's request, Durga files a case against Jai for the custody of the children. Because of Jai, Bani gets the custody. The children want to stay with their father. Jai needs money so he does a job of a waiter at a party but he doesn't know its Aparajit's party. There in the party Aparajit tells everyone that Durga and him are getting married the following week and after the marriage him, Durga, and the kids are moving to America.
After the party Jai requests to Bani to let the kids stay with him. Bani disagrees. Later that night while Aparajit was sleeping, someone comes into his room and puts a letter saying that if he marries Bani, then a lot of bad things will happen to her. Aparajit tries to catch that person but couldn't. He thought that person was Pia. It wasn't Pia it was Jai. Aparajit Dev and Bani are going to get married. But Bani finds out the truth about the blackmailing and goes back to Jai Walia. Everyone's back in the Walia Mansion. Jai and Bani are going to get married again.
Before the marriage, Pia asks for the custody of their son, Veer but Jai doesn't do so. So, she has Veer kidnapped. Jai already knows about her plan and report to the police. On the way, the police has caught Pia with Veer. Unfortunately Pia's car met in an accident while she was trying to escape from the police. after Bani and Jai's marriage, they received a call that Pia's car has met in an accident. They rushed to the hospital and the doctor says Pia is now in coma stage and Jai told the doctor that he wants to bring back Pia home.
A few days passed and they are happy together but now Aparajit Dev has robbed them of all their money. They are trying to find ways to get money. After a while, Ranveer rapes Rashi. Aditya kicks Ranveer out of the house because of this. Ranveer comes back claiming to have "changed". Jigyasa thinks about a plan to steal the child from Rashi (who is therefore pregnant) and tells Ranveer to ignore Rano and pretend that he has fallen back in love with Rashi.
Meanwhile, Rano and Bani take Pia to Mount Abu, hoping that she will recover, and to sell their house. Bani also figures out that her mother has some relation with a palace. Bani accidentally hurts an insane man named Daksh, who gets calm only when he sees Bani. Soon Bani learns that her father had sold their house to Dhanraj Builders before he died, and upon meeting Dhanraj, Daksh's father. He happily gives her the house. She sells it only to find out later on that the house was bought to be demolished. She then returns to Mumbai, in time to save the Walia Mansion.
Dhanraj starts to search for Bani. Jigyasa fixes Nachiket's marriage with a spoiled, rich brat named Arushi, so that her family's company, Dhanraj Builders, will help the Walia's to build up their company once again through partnership. Arushi's kind and beautiful widow sister-in-law, Purva and Nachiket are in love but are agreeing to the marriage because the Walia family is counting on the alliance to build up their reputation in the market once again. Arushi is a very ugly and mean woman. Arushi is pregnant and Bani finds out that she has a boyfriend and is only marrying Nachiket to escape the embarrassment and consequences of being pregnant from her family. Arushi finds out about Bani having this knowledge and treats Bani very rudely. Bani also finds out that Purva and Nachiket love each other, and tries to tell Jai, but there is no time. Then, she finally discloses to both the families at the marriage function, the truth about Arushi and Purva and Nachiket. However, she is yelled at by everyone, including Arushi who also dismisses this as false. Then Dhanraj, Arushi's uncle, comes and reveals the truth about Arushi, as he had seen her and Bani at the airport and hospital. Mohan, Arushi's father, slaps Arushi, and they decide to get Purva and Nachiket married. Then Arushi and Jigyasa hook up together to take down Bani.
Bani helps Daksh as a request by Jai who got a request from Dhanraj. Jigyasa and Arushi try to make it look like there is an extramarital affair going on between Bani and Daksh. The big secret that Dhanraj is keeping a way from Bani is that Daksh is the widower of Bani's long lost twin sister, Anamika. Jai wants Bani to stop seeing him even though 60% of his brain is working. Upon her refusal, Dhanraj blackmails Bani with throwing Jai back onto the streets. One night, Masi follows Bani and as she is about to start her car, she sees Masi standing in front of it. Masi asks her why she is going against Jai's orders. She then explain her weaknees is causing her to do this, in order to save their family. She helps Daksh get better by reenacting his wedding to his dead wife. He gets better and is very upset at his parents for blackmailing Bani.
Soon afterwards, Bani decides to tell Jai about how she had helped Daksh so Jai decides to take her and his children (Krishna and Aatharva) out for dinner. She leaves with the children for the hotel when she gets a call from Dhanraj to come at his house at once. She hesitates at first but leaves on a taxi leaving the children with the chauffeur in the car to take to the hotel. On the way, the car is stooped by numerous vehicles from all directions and Krishna and Aatharva are kidnapped. BAni is waiting at the hotel and Jai arrives to break the news to her. She is shattered. They have all preparations made to trace the kidnapper who calls Jai but from the Walia mansion. Each time they aske for money Jai reaches with police causing for the kidnapper to set another meeting time. One time, the kidnappers call Bani asking for Rs.30,000,000. Daksh insists on helping her after all she did. She doesn't tell Jai about the time so she reaches there first. After handing over the money, the kidnappers hand over the children but upon hearing the police siren which Jai has brought, the kidnappers take the money and run off with the children. In the car, the children are crying so kidnappers give the children anesthesia and hand them to Jai and Bani who are running behind the car. Bani and Jai hug the children only to find out that they are dead.
Jigyasa has called upon a black magic sorcerer to help her kill Bani. First, to get her thrown out of the house, she instigates Jai to think Bani and Daksh are having an affair by showing her pictures of Anamika and Daksh's marriage. So Jai throws Bani out (who is already in mute state) and as Masi tries to explain the truth, he throws her out as well on the day of their children's deathday
-In majority's opinion, Bani (aka Prachi Desai) is a wonderful actress for such a young age-

