I dont have much hope on people like Kaushi...I can bet even for Vasu, she might change and take Sadhna's side, but Kaushi ...her change will never be possible. Why? Kaushi always knew that Sadhna married Alekh for saving the house, she knew Sadhna gave all her money for Mamaji's treatment and many things, rather she knows Sadhna more than Vasu. Kaushi is such a lady who never could shower affection on an orphan girl, rather she tortured a girl right from her childhood.
Signs to identify an evil person:
a person who does not love babies and a person who destroys beautiful flowers...this is not my word, but of some wise men...