Ek Din Ka Sultan (King For A Day) is a 1945 Hindi/Urdu historical drama film produced and directed by Sohrab Modi with story by Agha Jani Kashmiri. The production company was Minerva Movietone with cinematography by Y. D. Sarpotdar. The music was composed by Rafiq Ghaznavi, Shanti Kumar Desai and D. Gadkar with lyrics by Wali Saheb. The stars featuring in the film were Mehtab, Wasti, Pratima Devi, Ghulam Hussain and Ghory.