Sahgal attended a number of schools as a girl, given the turmoil in the Nehru family during the last years (1935–47) of the Indian freedom struggle. Ultimately, she graduated from Woodstock School in the Himalayan hill station of Landour in 1943 and later in the United States from Wellesley College (BA, 1947), which she attended along with her sister Chandralekha, who graduated 2 years earlier in 1945. She has made her home for decades in Dehradun, a town close to Landour where she had attended boarding school (at Woodstock).