Abir Chatterjee and Parambrata Chatterjee have been one of the most loved pairs in Bengali cinema. After Bastu Shaap, the duo will be seen together in Shah Jahan Regency, in the roles of Sata Bose and Shankar. Speaking of the long gap between two movies, Abir said, "There is no point in doing a film just for the sake of it. We didn't want to just go with the flow and do any random thing." Parambrata too thinks Srijit's screen adaptation of Shankar's Chowringhee is the right film for them to work together again. In the film, Abir and Parambrata are called Samiran and Rudra respectively.