text: In 1970, she participated in the Femina Miss India pageant, where she came in second place and was titled the 'First Princess'. Following this, she competed in, and won, the Miss Asia Pacific International pageant, becoming the person to hold both pageant titles at the same time. After winning these pageants Aman began acting, appearing first in the film The Evil Within (1970) alongside Dev Anand, which was commercially unsuccessful. In 1971, Aman appeared in a minor role in O. P. Ralhan's Hulchul, and in the same year appeared in the 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 1971 musical drama Haré Rama Haré Krishna, after actress Zaheeda turned down the role. The film was a critical and commercial success, and proved to be a breakthrough for Aman. She won the Filmfare Award for Best Supporting Actress and the Bengal Film Journalists' Association Award for Best Actress (Hindi) for her performance in the film.
  In the 1970s, Cine Blitz magazine was launched, with Aman on the cover of its first issue. In 1973, she starred in Heera Panna, yet again appearing alongside Anand, and in Nasir Hussain's Yaadon Ki Baaraat as Sunita, the love interest of Vijay Arora. The latter film was described by film scholar Kaushik Baumik as "the first quintessential Bollywood film", proved to be a major commercial success at the box office. Aman's performance in the song "Chura Liya Hai Tumne Jo Dil Ko" garnered considerable attention, after which she became known as the "girl in white carrying a guitar". She also starred in Dhund (1973) alongside Sanjay Khan and Danny Denzongpa; its plot was inspired by the Agatha Christie novel The Unexpected Guest. The cast's performance was praised, and the film was a moderate commercial success.