Actor Hrithik Roshan is finding it tough to shoot for "Mohenjo Daro" in dust storms. However, he is happy that the "film is progressing fantastically"."We are working very hard in the middle of dust storms. It's a tough shoot. What to say... people are fainting on the set. But we are at it," Hrithik said here at an event."The film is going very well. The shooting is progressing fantastically," he added.Directed by Ashutosh Gowariker, "Mohenjo Daro" is an epic love story set in the Indus Valley civilization. It is being extensively shot in Bhuj.Meanwhile, reports are doing the rounds that Hrithik will go nude for a crucial scene of the film. When asked about it, he quipped: "I don't go nude in films, but somewhere else."