Behir is love story execution was totally different from raghbani ruhi was present in first episode only but people can feel her pain of molestation and losing her love just like viewer feel rm pain for loosing bani . Here bani is equivalent to vikrant a beautiful past of lead. Mahir is equivalent to pragati a innocent man got trapped in wrong circumstances. When bela revealed as ruhi viewer got curious that how bela fall for mahir and how long mahir survive from a revengeful naagin anger specially when he is totally clueless about the incident. Whenever vikrant fbs shown in naagin3 before his re-entry people clearly get upset but those fbs are necessary to show bela 'a feelings towards vikrant when bela finally confess her love in front of mahir she clearly mention the difference between her feelings towards vikrant and mahir even when mahir shown dead in naagin3 her reaction was totally different from vikrant death.