Mumbai – Hindi film directors use different tricks for the promotion of their movies. The director of ‘Kahani 2’ also did something like this and took actor Vidya Balan in a sweet shop in Kolkata. Gupta Brothers is a famous sweet shop in Kolkata. Vidya reached this shop and understood the process of its sweets making. Jayantilal Gada is the producer of ‘Kahani 2’ which is being directed by Sujoy Ghosh. The movie will be releasing on December 2 and its first part was released in March 2012. Audience had given thumbs up to this movie.