I just made a very interesting observation(all the Christmas almond cakes are finally paying off).
There is a very interesting similarity between Bani and Jigs.They both will go to any extent for their children(in Bani's case her sister) and are hardly bothered about other people in the process.Unfortunately it is Jai who suffered from both the ends. We consider Jigs as Evil cause she is hurting Jai and Bani but if this story would have been from Jigyasa's point of view than Bani's conduct would have been questioned in the same light as Jigs. When it comes to their own flesh and blood, they will do anything to ensure their happiness regardless of who gets butchered in the end, just their people should be happy.
Jigs once said to Bani that she loves Jai a lot but she loves her children even more, the same however becomes applicable to Bani in respect to Jai and Pushky also.