hi
they are 3 possibilitiies,
witcha lied to her father that kunal she loves her but since he is married to siddhi he cant leave her, she must have lied that, taht night something happened between kunal and her but kunal told her to forget about it bec he cant break his marraige etc. hence thakral comes to they house and will accuse kunal for spoiling witcha's life. kunal will stay quiet bec he thinks maybe that will be a vailid point to use in court so him and siddhi can get div, (rem how the client kunal met thsi week said he was ready to eb accused of ema etc as long as he gets divorce), maybe kunal does the same
option 2 would be the aitraaz track, but like you said will witcha did that and become khulam khulam villain infront of kunal
option 3: thakral maybe is happy with kuanl for exposing vineet and saving witcha and maybe thinks its better that witcha-kunal get back together and kunal divorces siddhi.
as far as siddhi goes i doubt she will believe kunal molested witcha etc
yes she may think kunals wants witcha hence wants to div her etc, and she did see them in the room that night etc, but then they is no purpose of the seema scene na.
plus witcha doesnt know yet that sinal have consummated and kunal is getting div from siddhi
witcha knows that sinal love each other
norzar