I wonder how that part would be played out. If the documents are sent by the lawyer to Sona's house, all hell will break loose from Bijoy Bose side. In case Sona only gets to see the document then either she might just sign it without any question asked or she might confront Dev about it and then that would be another story altogether between the son and mother. All in all the prenup is sure to stir up some drama in the coming episodes.