Ragahv confusion about Mandar 🤔🤔🤔

His dialogue today - if that guy is not Mandaar its fine, if he is, then Pallavi should never know the truth. Gosh, was that? Could be Mandaar was super bad and Pallavi having such high regard and respect for him and his family, she will be shattered? Is that his fear or something else?

I was thinking if Raghav ran into someone - accidental death and Mandaar was a witness. Raghav started chasing him and he jumped off into the river..well.. But Ved seems to know Mandaar even closer, so it cant be just that he was some random stranger that witnessed an accident.