Mamaji just have to ask her tell her few things. Mamaji should say:
Kaushliya ji in my opinion I think we are the bad shadow on Sadhana's life as when she got her father's insurance money I got the heart attack and Vinu went to Jail and she gave all that money to us. She married Alekh coz our house was being auctioned. Though Ragini would have the done the same thing if given chance but if Ragini would have been in Sadhana''s place and Alekh was Ragini's husband wouldnt she expect Alekh's brother to help him out. And on the other hand if you expect from Ranveer that he should not help his brother then we should not expect anything from Vinu as well coz his wife wants the same thing. These are the few dialogues that Mamji needs to say to Kaushiliya ji