Shah Rukh Khan promotes his superhero film 'Ra.One'

New Delhi, June 2(ANI): Superstar Shahrukh Khan promoted his forthcoming superhero film 'Ra. One' in New Delhi on Wednesday. Talking about the film, Khan said the film's concept revolves around a superhero and depicts the story of a father and a son. Adding that there are not many films made like Ra.One in the country, the star said the movie is special because it is technologically superior