We see that Raghav threatened Mahir against marrying Pihu to make sure Pihu doesn’t get engaged to him. Mahir believes this and falls for Raghav’s trap.
We see that Raghav goes out of his way to not let Pihu get married to Mahir. He threatens Mahir, claiming that he loves Pihu and will kill Mahir if he tried to get closer to Pihu.
Pihu used to hate Mahir. But, Monica wants Mahir to marry Pihu so that they can get the entire Kapoor wealth in their hands. Moving on, Pihu makes a shocking decision to marry Mahir.
Prachi agrees to marry Josh only for LK’s sake. Pihu meanwhile does not want her to marry Josh and ruin her life and tries to tell her to change her decision.
We see that Pihu thinks that Raghav’s concern for her is something more and she thinks that Raghav has feelings for her. However, Raghav is in love with Prachi.