Yes, Karan grilled Priyanka, John and Abhishek about their roles in Dostana in an interview but refused to open his mouth on Bobby's role. He said that the film lovers should watch the film to know his role.
Meanwhile, director Tarun Mansukhani has spilled the beans on Bobby's character. He revealed that he plays the role of a fashion magazine editor and so wears suits most of the time. He went a step farther by comparing Bobby to James Bond.
Well, Tarun has spoilt all the efforts made by Karan to make Bobby's character as a surprise element!