I think KN marriage will happen lke vivaah last scene, I think mandira, meera wants to take revenge on sn people, mandira may promised tanya that she will take off nandini from kanan's life, and told her toact positivly so that no one will suspect her and manthan,so may be meera,mandira,tanya and manthan wants kn to divide, may be tripti also their side or may not be. So they hired a man to kill nandini in the past also, but now when kn r getting marriage, they have to kill nandini, so on the wedding day may be tanya, tries to slip, nandnini by saving may fall down or wants to talk with nandini, the kill shots nandini, nandini is badly injured, so they will take her to hospital and doctor says it she is in serious condition, tulsi then will get them married in the hospital, saying that she will recover if marriage happen, baa and others support and tanya was in shock as she wants to stop kn marriage, but couldn't so karan puts mangasutra and also kumkum in the hospital itself, and after operation nandini will be ok.
I suspect that even the killer can be kn son, mandir told him to kill nandini for her..... i am sure that tanya and manthan are faking and tanya is not blind.
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