Filmmaker Nithin Lukose's directorial debut 'Paka (River of Blood)', produced by Anurag Kashyap and Raj Rachakonda, will have its world premiere at the 46th edition of the Toronto International Film Festival (TIFF). The Malayalam film will be screened under the Discovery section of the festival, which will be held from September 9-18. The film stars Nithin George and Vinitha Koshy.