After making small appearances as a child actor in several films throughout 1980s. Roshan made his film debut with a leading role in his father Rakesh Roshan's romantic thriller Kaho Naa Pyaar Hai (2000).
His performance in the film earned him Filmfare Awards for Best Actor and Best Male Debut . He followed it with leading roles in Fiza (2000) and Mission Kashmir(2000) and the ensemble blockbuster Kabhi Khushi Kabhie Gham (2001).
After several critically and commercially unsuccessful films, he starred in the science fiction film Koi. Mil Gaya(2003) and its sequel Krrish(2006); the former won him the Filmfare.
