Music director S. D. Burman is credited with spotting Kumar’s talent for singing. During the making of Mashaal (1950), Burman visited Ashok’s house, where he heard Kumar imitating K. L. Saigal. He complimented him and told him that he should develop a style of his own, instead of copying Saigal.Kumar eventually developed his own style of singing incorporating yodeling which he heard in American music.
It was S D Burman’s son R D Burman with whom Kishore Da established a phenomenal working partnership in the 70’s.
The two would go on to combine on several memorable songs.