Sahgal has been married twice, first to Gautam Sehgal and later to E.N. Mangat Rai, a Punjabi Christian who was an Indian Civil Service officer. Though part of the Nehru family, Sahgal developed a reputation for maintaining her independent critical sense. Her independent tone, and her mother's, led to both falling out with her cousin Indira Gandhi during the most autocratic phases of the latter's time in office in the late 1960s and throughout the 1970s. Gandhi cancelled Sahgal's scheduled appointment as India's Ambassador to Italy within days of her return to power. Not one to be intimidated, Sahgal in 1982 wrote a scathing, insightful account of Gandhi's rise to power.