Aman began acting in 1970, and her early works included the films "The Evil Within" (1970) and "Hulchul" (1971). Her breakthrough came with the film "Hare Rama Hare Krishna" (1971), for which she won the Filmfare Best Supporting Actress Award and the BFJA Award for Best Actress. She next starred in the film "Yaadon Ki Baaraat" (1973), for which she received further recognition, and established herself as a leading actress in the seventies with starring roles in "Roti Kapada Aur Makaan" (1974), "Ajanabee" (1974), "Warrant" (1975), "Chori Mera Kaam" (1975), "Dharam Veer" (1977), "Chhailla Babu" (1977), "Hum Kisise Kum Naheen" (1977), and "The Great Gambler" (1979). For her role in the 1978 film "Satyam Shivam Sundaram", she was nominated for the Filmfare Award for Best Actress. She also starred in "Don" (1978), a film which spawned the Don franchise.