"Yes, I have been signed for this film. I can't talk much about it. There are other two films of mine that are coming out- 'Maximum' and 'Rush'," Dhupia told PTI.
The film will also star Sanjay Dutt, Kangana Ranuat, Randeep Hooda and is likely to roll out later this year.
Earlier, Karan had said, "The film has a strong ensemble cast, like Emraan, lots of people are there in it like Kangana, Randeep Hooda and host of young brilliant actors. We will announce the film with title and cast very soon. It is about individual paths, there is no predominant love story. It is too early to talk about it."
Recently, Dhupia attended Karan Johar's 40th birthday bash.
Besides, KJo's film, the actress will be next seen in Kabeer Kaushik's crime thriller, 'Maximum'. The project also features Naseeruddin Shah, Sonu Sood, Vinay Pathak in pivotal roles and will hit theatres on June 29.
Her other project 'Rush' is again a thriller directed by late Shamin Desai. The film stars Emraan Hashmi and Aditya Pancholi. After the death of Desai, the project is being completed by wife Priyanka under Percept Picture Company.