Khemchand Prakash was one of the leading music directors of the 40s. His contemporaries were Ghulam Haider, C. Ramchandra, Anil Biswas and Naushad. He was a pioneer in the field of classical music. He was an expert in Marwar folk songs, thumris and ghazals.
In the 1949 movie, Mahal, his music was considered extraordinary, in terms of its melodies, use of sounds and orchestration. Khemchand Prakash gave Lata Mangeshkar her break in Mahal, despite many objections such as her voice was too thin and reedy. The veteran actor, Ashok Kumar suported Khemchand Prakash's choice and the song “Aayega Aanewala'' went on to become one of the most beautiful and lingering songs.
Mahal is Khemchand Prakash’s best work at the peak of his career. During the production of Mahal, a critic mentioned to the studio authorities that if the film wasn’t a hit, it would only be because of the music. After the release of Mahal, Khemchand received hundreds of letters praising the music from all over India. Khemchand Prakash went over to that critic’s house and made him to read all those letters.
Khemchand Prakash’s work in movies like Mahal, Tansen and Chalte Chalte was an inspiration to several music composers. He directed some of the industry’s biggest singers like Indubala Ishwarlal, Meena Kapoor, Manna Dey, Asha Bhosle, Kantilal, Brijmala, Geeta Dutt, Khurshid, Rajkumari and Shamshad Begum.
Khemchand Prakash not only gave a boost to Lata Mangeshkar's career, he was also the one who introduced Kishore Kumar with Marne ki Duayen Kyon Mangoon in Ziddi in 1948 as well as in Rhim Jhim. Unfortunately, Khemchand Prakash passed away in 1950, still in his early 40s.