After turning down marriage proposals from Sanjeev Kumar and Jeetendra, she met with hot fellow actor, Dharmendra, both were attracted to each other and wanted to get married. Dharmendra, who was already married to Prakash Kaur, and had two sons, Sunny and Bobby, could not marry Hema as Prakash refused to divorce him. According to the Hindu Marriage Act, a Hindu cannot marry a second time while the first wife is still alive. Dharmendra belongs to a Arya Samaj Hindu Punjabi Jatt family.

On August 21, 1979, both Hema and Dharmendra converted to Islam, changed their names to Aisha Bi R. Chakravarty and Dilawar Khan Kewal Krishn respectively, and got married in accordance with Islamic rites. Three years after their marriage, Hema subsequently gave birth to Esha and then later to Ahana. Esha is an actress in her own rights. The trio, well proficient in the arts of Bharatnatyam dance form, have performed together at a number of dance events and concerts.