Thanks for the update.
Understandable that the Daubey's want to save their son, he is their flesh and blood afterall.
To hide the truth from Yash they told Aarti she had to repay their favour, hope they don't say like that again.
Given her delicate condition I think they should talk to Yash for themself. Confess what they made Aarti do and let him agree for Ansh to help Prashant. If Aarti gets to find out the stress might cause her to lose Aayu, how will the Daubey's feel if that happens?
Complicated situation all around.