After a string of off-beat films, National Award winning director Neelakanta is dabbling with a commercial film for the first time in his career. The film titled Chammak Challo has Varun Sandesh, Sanchita Padukone and Catherine in lead roles. Except for a song, the rest of the film has been completed. DS Rao has produced the film and Kiran Varanasi has composed the music. The film is all set to hit the screens later this summer.