In 1945, Khan set up his own production house – Mehboob Productions. In 1946, he directed the musical hit "Anmol Ghadi", which featured singing stars Surendra, Noorjehan and Suraiya in leading roles. Khan went on to produce and direct many blockbuster films, the most notable being the romantic drama "Andaz" (1949), the swashbuckling musical "Aan" (1951), the melodrama "Amar" (1954), and the social epic "Mother India" (1957). The latter was nominated for an Academy Award in 1957 and was a remake of his 1940 film "Aurat". His earlier works were in Urdu, but his later material, including "Mother India", were in Hindustani, a friendlier and softer spoken version of Hindi and Urdu. Several of his films, especially his earlier work on "Humayun" (1945), the story of a Mogul emperor who ruled India, "Anmol Ghadi" (1946), and "Taqdeer", (in which he introduced Nargis, who later married Sunil Dutt), were written by Aghajani Kashmeri. Kashmeri was responsible for picking and training Nargis in Hindustani and Urdu dialogue delivery. His last film as a director was 1962's "Son of India".