Iss Pyaar Ko Kya Naam Doon 3

The drama is based in Allahabad and tells the tale of two childhood friends named Dev and Chandni. The chief priest of a temple renowned for its hidden wealth is Dev's father. Dev's mother is accused of being an extraterrestrial, and Dev's father is incarcerated for stealing the idol's jewellery.

They are murdered by an unknown individual, and Chandni's father then ascends to the position of Mahant. Together with his younger brother Meeku, Dev is forced to flee. Dev is forced to eject his brother from a train in order to protect him from a mob.

Dev has returned to Allahabad after 16 years while posing as Advay Singh Raizada. He intends to exact retribution since he holds Chandni and her family accountable for the suffering his family endured and the fact that he was separated from his sibling. He purchases the Vashisht family's home but permits them to remain there.

The wedding of Chandni and PP, a sleazy man whose family would cover her stepmother's debt, has been scheduled. Advay repeatedly saves her from her fiance's bad behaviour while simultaneously making fun of her. Chandni doesn't understand why he despises her so much. He forcibly marries her after calling off her wedding by threatening to expose her illegitimate child, who is currently living in an orphanage. To maintain her family's respect, Chandni agrees, but she keeps Advay in the dark about the fact that the child is actually her sister's.

In any case, Advay makes this public in an effort to harm the Vashisht family's reputation. He kicks them out of the house, but Chandni is taken in by his grandmother.

Despite the fact that Advay has been emotionally abusive and chauvinist, she maintains Chandni's innocence and begs her not to leave him under any circumstances. Before Chandni and Advay, the truth eventually comes to light. When Chandni realises that Advay is her long-lost childhood buddy Dev, Advay also realises that Chandni has been telling the truth the entire time. Chandni finds Miku and reunites him with Advay after having her stepmother, who is the real offender, jailed. The family decides to marry Miku and Shikha as she develops feelings for Chandni's sister.