Complex sentence: The production house was unsatisfied with promotional activities done before release of the film, eventually the release date got pushed to 27 June 2012 and is one of the major releases of the year after Katari Veera Surasundarangi.
Split into simpler sentences: The production house was unsatisfied with promotional activities done before release of the film, eventually the release date got pushed to 27 June 2012. The film was one of the major releases of the year after Katari Veera Surasundarangi.