in my opinion tanya is the worst character of kyunki.dosti ke naam pe spot.
her love towards karan is so selfish.
she spoilts both the kids and now she is using bhoomi against nandini karan.plus she is abiggest lier.she said to karan when nandini willl return in your life i will leave you but no she is showing jelousy.
very true...she has forgotten that if bhoomi gets to know the truth then surely bhoomi will turn against her and bcom her biggest dushman