In the Sujoy Ghosh directed sequel, actress Vidya Balan is back as Vidya Bagchi alias Durga Rani Singh, while Arjun, who plays a cop, is a new entrant.
"I have been away for a while, and people will get to see me on a big screen after a long time, so I am excited about my upcoming films.
"It ('Kahaani 2') is a big film for me. As an actor, I do feel I have the responsibility of this film on my shoulder. I would hope the film will do well for me as the first part was a hit.
Of course, there is pressure, but that's okay," the 43-year-old actor told PTI.
Working with talented people like Vidya and Sujoy helped Arjun up his game as an actor.
"Working with talented people always helps you give a good performance. It was a delightful experience to work with Vidya, Sujoy and all the other actors. I had a great time shooting in Kolkata," he said.
The suspense thriller produced by Sujoy and Jayantilal Gada is set to open in theatres on December 2.