I've got a question

Vayu and Kkavya are acting "brotherly". Vayu is doing charity work for the Nanda parivaar. Kkavya has called him a member of the family.

Does Kkavya and the rest of the family now know the truth? What is going on? Does the family know, or are they just being friendly to him?

nitya said vayu was her son with her husband (who died0?

how did she manage to explain that? didnt the family ask her where she had been hiding him all these years? and why they didnt know about him before?

Nitya said that a man called Aman Kapoor had stolen her and Mayank's son. And now she had finally found him. Everybody accepts Vayu as the son of Nanda family.

Nitya twisted the facts around and proclaimed Vayu as her and Mayank's child. And a crazy lover of her kidnapped him that is Aman Kapoor. so now he is considered family.