I found this in KTLK forum:
"In fact, I had shot for the mock shoot of this show and that footage was used in The Serial. And it was only after the mock shoot, that I decided not to share my personal life on-screen. But since, Karan and Vikas are my friends, I trusted them with my footage but it was used."
Ask her, as to why she backed out of the show after the mock shoot, to which she replied, "I never wanted to come out with my side of the story (Karan and Kritika affair and break-up story) and I never will. And, it needs to be clarified that it is a fiction show and not one based on reality."
However, when we spoke to Vikas, he observed, "She was just doing a cameo in the show and yes, we did dub her voice but we did not use a body double. And even the dubbing was done with her permission. She is a friend and we care about her."
Karan on the other hand said, "She is family for me and I will always be there to support her and wouldn't want to comment on anything."