Actor Rishi Rithvik is eagerly awaiting the release of Attu, a romantic thriller directed by Rathan Lingan. Since the story is set in North Madras backdrop, Rishi had to stay with a group of gangsters from North Madras to learn their dialect and body language. Apart from that, he also learnt silambam, kung fu and sword fight for the movie. For a particular fight sequence, the actor has used a real knife to use instead of a dummy one.