Hey i think both bro & sis r acting,there was no operation done. Koyal is a psycho. When Karan was in US,he met Koyal & they both became friends.But Koyal started liking him.And now she wants to get Karan. If she really loved Karan then how come she has a kid of around 5-6 yrs.Even i think CVs may also show that Koyal's daughter is actually Karan's daughter.
I dont know why Karan agreed to the marriage when Abha asked him whether watever Koyal said abt their marriage is true or not. He cud hav told her that he didnt get married to her as he didnt put Mangalsutra & Sindoor & the marriage is not complete without these. This is the same scenario as Abha married Ranchod but it was incomplete bcos Abha didnt take the 7th phera.
Even i think this Koyal doesnt hav any hole in her heart. They r just emotionally blackmailing Karan.
As per the new promo, Abha tells Raj & Koyal that until she is with Karan,no one can separate them. That means Karan has told everything to Abha & now she is with him.I guess the papers which Karan signed were the legal papers to transfer the Swarn Bhavan to Karan's name.But if it was the legal marriage papers then Abharan will be in big trouble.