Ok guys again my thriller mind (after reading hundreds of novels) came up with this point.
We are thinking that Rano and Sahil would elope and leave the family in a bad situation.
And to me it seems that Ranveer for a change would act as a good older brother and tell Rano and Sahil that he loves them too irrespective of his behaviour and cares for them. So he might be hte one who give them the idea of ELOPING. And assures them that he would take care of veryhting at home as Anu is his sister too. HE then say all the bad things about all the three sisters and how they made fun of Walia family in front of whole crowd and VOLUNTEER to marry Raashi even though he is a bhramchari just to save hte respect of family.
THis way he can get three sisters out of walia mansion, Jigs can eturn back and Anu would still get married.
I am sure this is going to go on this track.