Very tough, Rishu! I keep thinking about this question a lot. Thanks for this post!!
So win against Tanu means Tanu leaving Abhi or Tanu exposed for all her crimes? This is what I ask myself.
Pragya cannot make Tanu leave Abhi. That's up to Tanu or Abhi. Now story has moved to that point where Abhi can finally cut her out of his life.
Pragya can win in exposing Tanu/takhil and their crimes only if she first gets Abhi's trust back. She needs to tell Abhi she's fuggy. Without the history and context behind mugambo, she can't win. Then all the family members, doc sheela, ronnie will help. Raj and Aliya can play a big part to help her win.