Great post Swathi..
Kanak is a woman without a conscience and has no thought of anyone but herself.
Circumstances can make a person bitter and angry but here Kanak is shown that she has married into a rich and powerful family and still she craves to want more and more.
She truly seems to enjoy putting people down and thus making herself feel superior
and her complete disregard for others feelings, she even does not think twice before she plans a murder of Dhaani and her F I L.
Kanak was actually more angry her plan to kill her F I L failed than losing her husband in that plan.
Kanak , I believe is a Bad Seed and will need intensive therapy for years before anyone will be able to see a slight change in her attitude or destructive behaviour.