Royal Bengal Rahashya Bengali 2011 is a thriller film directed by Sandip Ray based on the novel of the same name by Satyajit Ray. The film was released onDecember 2011. It is the fifth and the final installment of New Feluda Franchise and the sequel to Gorosthaney Sabdhan. After the demise of Bibhu Bhattacharya Jatayu, Sabyasachi Chakrabarty declared that he would not be playing Feluda anymore. Thus, director Sandip Ray decided to reboot the series, Badshahi Angti film, the first installment of which starring Abir Chatterjee as Feluda and Sourav Das as Topshe was released onDecember 2014.
The film version of the book was made by Sandip Ray with the earlier cast of the leading characters. The opening credits include a note that all the animals that appear in the film have been fashioned digitally. The actor of Jatayu, Bibhu Bhattacharjee died on the night ofSeptember 2011, the day the dubbing was completed. It was released onDecember 2011. The film is produced by Shree Venkatesh Films and Surinder Films. The film, made on a budget ofcrore grossed about 3.00 crore, became a Superhit.citation needed