' Naagin 7 ' shows a flashback revealing how Radhika became a dragon. Purav tells Radhika to run away from a place. Radhika says she is ready to die to fulfill Airul's dream. A scientist demands more money from Airul. Airul refuses because he has already paid enough, and the scientist threatens to destroy the experiment. Airul and the scientist fight. Radhika tries to save Airul, and the scientist pushes her. Radhika falls into the experiment chamber. Airul kills the scientist in anger. Yet, suddenly, he sees a dragon coming toward him. The dragon transforms into Radhika and faints. Purav tells Airul that Radhika has become a dragon. Airul becomes happy hearing this news. Radhika thinks about how she hated her mother and how Airul hated India. On that day, a new Radhika was born as Dragon Radhika .



Radhika's mission beginsAfter some time, Purav tells Airul that Radhika is still weak. Airul says she should not go to the Maha Kumbh Mela that year. Radhika insists she will go. Airul warns her that Anantkul ki Naagrani will be there, and she may die. Radhika assures him she will handle it. Airul tells her not to tell Parmeet that she is a dragon. Later, Airul tells Parmeet to keep the dragon in his office basement. Radhika recalls how she went to Maha Kumbh Mela and met Ananta for the first time. She got defeated in that meeting. After some time, Purav tells Radhika he will tell Airul about her. Radhika asks him to let Airul think she is dead. She says this is her revenge, and she will succeed. She will also fulfill Airul's dream. She reveals that she wrote letters to Ananta.



Radhika's present planIn the present, Radhika tells Purav that she used Aryaman 's feelings for her. She says she came back into Aryaman's life to take revenge on Ahana . She knew from the beginning that Ananta was Ahana. But Ananta does not know this. Purav asks what her next plan is. Radhika says her mother left her for Ananta, and Ananta is a Jungistani. She reveals that no one knows Ananta is alive, so she will kill Ananta. A tiger arrives at the place. Radhika tells the tiger to attack Ananta. The tiger tries to attack. Ananta transforms into a Naagin and fights with the tiger. Radhika watches this fight.



Ahana's sacrificeLater, Ahana falls asleep. Aryaman comes and sees her. He remembers how Ahana demanded a divorce, saying she loves Vikram. He falls asleep. Ahana wakes up and notices it is Poornima night. She realizes she has only 24 hours to reunite Aryaman and Radhika. She plans to leave permanently.



Ahana calls Vikram the next day and asks him to meet her. Radhika tells Vikram that Aryaman has agreed to divorce Ahana and that she is happy that Vikram will get back with Ahana. Vikram says he is happy for both Aryaman and Radhika. Radhika tells him that Parmeet might try to stop the divorce, so there is a shortcut. She thinks she will separate them today.



Ahana asks Aryaman to wear his white suit, his lucky suit. Aryaman says he does not think his luck is working anymore. He gives her the signed divorce papers. Ahana says she has packed her bags and can finally go to her love. Aryaman says he can also go to his love. He suggests they tell Parmeet about the divorce.



The fake engagementParmeet tells Airul that Ahana is not a Naagin. Airul warns him that he will die if he does not get the Naagmani by tonight, which is Poornima night. Parmeet ends the call when he sees Aryaman and Ahana. Aryaman tells Parmeet that he and Ahana are divorcing. Parmeet pretends to have a heart attack. Ahana tells him to stop acting and says he just has a gas problem.



Parmeet says he will not let their marriage break.Vikram arrives with musicians and announces that Aryaman and Ahana's marriage was fake. Aryaman says he and Ahana do not love each other and are not made for each other. Ahana removes her nuptial chain and gives it to Aryaman. She holds Vikram's hand and says she will get engaged to Vikram today. Aryaman says he has gained freedom and will get engaged to Radhika today.



Ahana's truthAhana goes inside with Vikram. Vikram says he knew she wanted to surprise him, but he surprised her instead. Ahana tells him that she does not love him. She loves Aryaman. Vikram asks her what she is saying and why she is divorcing. Ahana explains that Aryaman loves Radhika, and she does not want to come between them. She seeks Vikram's help for a fake engagement and he agrees. Ahana thanks him and leaves.



Tina asks Ahana why she is doing this. Tina says she knows Ahana loves Aryaman. Ahana lies and says she loves Vikram. Radhika overhears this conversation. She thinks Tina wants to reunite Aryaman and Ahana. However, the same cannot happen.