Filmmaker Harish Shankar says he has pushed himself as a director and writer with Allu Arjun starrer forthcoming Telugu action entertainer "Duvvada Jagannadham".The film is slated to hit the screens on June 23."'DJ' is that one special film for me where I pushed myself as a writer and director to deliver the best. This resulted in a one-of-its-kind climax. I'm sure you guys will have a blast in the theatres," Harish Shankar tweeted on Tuesday.Produced by Dil Raju, the film marks the first time collaboration of Arjun and Harish.Harish also thanked producer Raju and Arjun for making "this journey special".Also starring Pooja Hegde, the film features Arjun in the role of a Brahmin chef.The film has music by Devi Sri Prasad.