Bigg Boss was a traumatic experience for Tanishaa

Kajol has finally opened up about Tanishaa Mukherji, Armaan Kohli and Bigg Boss. While she has shied away from discussing her little sister?s relationship with her BB7 contestant on Karan Johar?s starry chat show Koffee with Karan 4, in a recent interview the actor talked extensively on all three subjects.