Superstar Salman Khan, who will be seen in Sooraj Barjatya's Prem Ratan Dhan Payo will reportedly go on a world tour to promote the film in different countries. Director Sooraj Barjatya's films are a major hit among NRI community abroad and the production house wants to bank upon it, especially after actor Shah Rukh Khan's SLAM! The Tour was successful in promoting Happy New Year on a massive scale.