Just a few days back, Aishwarya Rai Bachchan announced that she is all set to work with director Sujoy Ghosh. The former Miss World made this confession during one of her Cannes outing. While the talented actress didn?t reveal much except for this, we hear she may step into Kangana Ranaut?s shoes who was supposed to do Kahani director?s next starring Saif Ali Khan in the lead. Well, the film in question is based on Keigo Higashino?s novel The Devotion of Suspect X. For this flick, Ghosh has teamed up with Ekta Kapoor who has bought the rights of the book and will produce the venture under her banner.