honestly this can be the only saving grace of the show and even if you look at flashbacks, you do feel that Bansi is upto something, some plan running. I am too sure that she would have swapped the babies, bribed doctor to lie and then gave stupid idea of baby swapping to Nani so that she does - which best friend on earth will even give such advice till the time any personal motive i mean seriously saying that 30mins you have!! what dialogue was that??
i'm sure they would have known Roshni will bring loads of good luck and fortune thus she planned all this, deceived Nani and then blackmailed her in child marriage. Nothing else fits better and honestly I really really truly with whole heart hope believe and pray CV's / PH does this only else Rose clearly called out - 2 saal ki mehnat kharab!! they shld shut the show then!! i'm okay if they show that Roshni gets to know adoption truth, gets upset / angry - any separation but CV's shld use this above point as savin grace!! and yes let the Jamai Raja do all the work - as usual (and post this track i am sure they will bring back shabby - that is also a loose thread so far!!)
and if cv's are not thinking so - well guys lets please give them this idea to save our loving show!!