Shashi Kapoor's debut film as a child actor was "Aag" (1948), directed by Raj Kapoor. He played the younger version of Raj Kapoor's character in the film. "Aag" was a significant milestone in Indian cinema as it marked the beginning of the Kapoor dynasty's association with the film industry. Shashi Kapoor's portrayal as a child artist in the film displayed his early talent and hinted at the remarkable career that awaited him. The film itself, though not a commercial success, is remembered for its impressive performances and contributions to the Indian film industry, setting the stage for Shashi Kapoor's illustrious journey in Bollywood.

Source: news 18