The Big Boss star was chosen over Bipasha Basu and Katrina Kaif for the lead female role in the action sequel.
Leone told DNA India: "It will be my debut in the country as an actress and I am really excited. Pooja Bhatt and Mahesh Bhatt are the people in the industry who are very respected and well-known.
"It is an honour after knowing who they are and their company, it is an honour to be asked by both of them to be in this movie."
Leone will reportedly appear naked under sheets in the main publicity poster for the film.
Big Boss competitor Amar Upadhay claimed last week that the former Indian-Canadian porn actress is "bad for Indian culture".