Hi Raania,
I think Bani will sign those papers. As much as I would hate for it to happen, we all know how Bani thinks, and unfortunately so does Pia.
I am sure that Pia will really degrade Bani tomorrow and really emphasis on the fact that her child was the outcome of love between Jai and Pia, whereas, Bani's child will be born out of sympathy that Jai felt for Bani.
She will probably in a way challenge Bani to sign the forms and live her life without Jai Walia to prove that she is a woman of her words and can live on her own and support her child.
However, if instead of signing the papers Bani just slaps Pia, gives her a good verbal thrashing and walks off...I would be so happy and very much surprised!!!!!
Nikita