In 1971, Aman appeared in a minor role in O. P. Ralhan’s "Hulchul", and in the same year appeared in Ralhan's other film "Hungama," which starred Vinod Khanna, Kishore Kumar, Mehmood and Helen; both films were flops at the box-office. Actor and director Dev Anand soon approached Aman to star as Jasbir/Janice in his movie "Hare Rama Hare Krishna" (1971), an offer given to her after actress Zaheeda denied the role. The film was a critical success, which helped her achieve her breakthrough. Her performance and acting in the film was praised, and she won a Filmfare Best Supporting Actress Award and BFJA Award for Best Actress.