The clash has been averted. Heroine has been postponed and will release a week after Joker on 21st September 2012.
Earlier in the day, Shirish Kunder the director of Joker 3D announced that the release of his film has been delayed by 2 weeks. That set up a clash between two much-awaited films, both produced under the UTV Motion Pictures banner.
Common sense has prevailed in the end, as a same day release would have affected both Heroine and Joker.
Note: Preity Zinta’s Ishkq in Paris also releases on 21st September.