This film was based on Ashutosh Mukherjee's Bengali novel "Saat Paake Bandha". The novel had been adapted earlier for a Bengali film by the same name in 1963. The Bengali film is best remembered for Suchitra Sen's acting. She won the Best Actress award for this role at the Moscow International Film Festival.
This was Anil Ganguly's directorial debut. He made this film after years of struggle as an assistant to directors Satyen Bose and Kalidas. A day before the muhurat of this film, the financier told him that he was backing out of the film. A devastated Ganguly confronted the financier and managed to change his mind with a combination of entreaties and threats. The muhurat was conducted as planned and the film was not only made but went on to become a big hit.[1]
This was the only film for which Kalyanji - Anandji won a Filmfare Award for Best Music Director.
This film was announced about a year before its release in a film magazine with a full-page advertisement that was blank - signifying the film's title - except for the title and a few important credits printed on the bottom of the page.
Writer and lyricist M.G. Hashmat made his beginning in Hindi films in 1974 with three films, including this one. He had earlier debuted a lyricist in the Hindi-dubbed film "Bachche Mere Sathi (Jani Dushman)" (1972).[2]
Song
Mera Jeevan Kora Kagaz - This song had a third antara in the film that was not part of the version in the audio release. Kalyanji - Anandji added the antara based on the suggestion of singer Kishore Kumar who thought that the song should have a stanza with a positive message. He jokingly told the composers that they could either get him to sing the third stanza right then or they'd have to pay him an additional fee if they called him back to sing it. According to Anandji, it was in these circumstances that he himself suggested the lyrics of the third antara.[3]