Highlighting her co-star's emoting qualities in front of the camera, she told that "Emraan is an amazing actor to work with. He is effortless and one of the most convincing actor I have ever worked with".
"He says the most unconvincing lines in the most convincing way," she added.
Bipasha and Emraan earlier worked together in 2003 release 'Footpath', which was the latter's debut film.
Directed by filmmaker Vikram Bhatt, 'Raaz 3', a sequel to 2009 film 'Raaz', also features actress Esha Gupta.