Kollywood star Karthi is all set to come up with his upcoming movie 'Sardar' under the direction of PS Mithran. Rashi Khanna and Rajisha Vijayan are playing the female leads in this movie. Now, we hear that the film will also feature a third heroine. The buzz is that senior heroine Simran will be a part of the project and she will be seen in a negative role. Touted to be a Spy Thriller, the film unit is planning to resume the film's shoot next month. Most likely, the film will head for a grand release by year-end.