Roshan has frequently collaborated with his father. He made brief appearances as a child actor in several films in the 1980s and later worked as an assistant director on four of his father's films. His first leading role was in the box-office success Kaho Naa. . . Pyaar Hai (2000), for which he received several awards. Performances in the 2000 terrorism drama Fiza and the 2001 ensemble melodrama Kabhi Khushi Kabhie Gham. . . consolidated his reputation but were followed by several poorly received films.