Maybe more than Raghav's past it could be Pallavi's. She may not have been a widow after all and pretended all that. She might have an idea about Mandaar still being alive, which is why she used to go to the police station.
Can Raghav accept this dhamaka that is way bigger than his own 'secret'?
Aisa bhi ho sakti hai ki Mandar shadi karne k bad bhag raha tha le kin Raghav k gari se takrakar coma mai hai ya sidha swarg sidhar gaye hai!!