Kishore Kumar was born into a Bengali family at Khandwa in Madhya Pradesh, on 4 August 1929.

He married four times. His first wife was Ruma Guha Thakurta aka Ruma Ghosh. Their marriage lasted from 1950 to 1958. Kishore Kumar’s second wife was the actress Madhubala, who had worked with him on many films including his home production Chalti Ka Naam Gaadi (1958). When Kishore Kumar proposed to her, Madhubala was sick and was planning to go to London for treatment. At this time, she didn’t know that she had a ventricular septal defect, and her father wanted her to wait and consult the London doctors first. Nevertheless, Madhubala married Kishore Kumar in 1960. Madhubala was a Muslim, and the two had a civil marriage. Kishore Kumar even converted to Islam, and took the name Karim Abdul.

His family was against the marriage, and the couple also had a Hindu marriage to please them, but Madhubala was not accepted by them. The doctors in London told Madhubala that she would not live for long. The marriage lasted for 9 years, and ended with Madhubala’s death on 23 February 1969. Kishore Kumar’s third marriage was to Yogeeta Bali, and lasted from 1976 to 4 August 1978. Kishore Kumar was married to Leena Chandavarkar from 1980 until his death.

Kishore Kumar had two sons, Amit Kumar (playback singer) with Ruma, and Sumit Kumar with Leena Chandavarkar.