The episode of Naagin 3 begins with Mahir seeing Bela and Rehaan come out of the washroom together. Bela says that Rehaan entered the ladies room by mistake. ACP Ajitaabh Singh goes through the video of the post-wedding function and sees a glimpse of a Naagin. Anu makes Kuhu and RJ check Jamini's room for proof.
They refuse to trust Anu as she had goofed up twice in her attempt to expose Bela. Aditya tries to attract the group's attention towards him, but suddenly Jamini takes Aditya in her grip. Bela teases Vish and Jamini and Vish says that she will force Jamini to reveal the truth and instructs Bela to kill Mahir. Bela says that Mahir will die in an accident.
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Ajithab investigates about Raavi. Bela returns to her room and Mahir gets irritated. Mahir tells her that he can see the love for Rehaan in her eyes. Bela gets shocked listening to him and Mahir starts to tell her that he loves her but stops. Vish who is in the disguise of Rehaan tells Jamini that they should wait until their marriage gets over.
Mahir notices Rehaan going into Bela's room and decides to talk to Bela. Vish tells Bela that she feels that Jamini is up to something. Jamini wakes up Bela by bringing tea in her room and Mahir walks in. Mahir takes Bela away and asks her to choose between Rehaan and him.