Seeta and Geeta (Hema Malini in a dual role) are twin girls who were separated at birth. Geeta, a feisty girl is raised in a poor neighborhood and is a street performer, while Seeta is raised by her cruel aunt Chachi and meek uncle. Chachi treats Seeta like a servant, despite the fact that the family is living off her late parents' money. Seeta's only consolation is her old wheelchair bound grandmother.

One day, Seeta decides life is not worth living and runs away to commit suicide. She is saved but is mistaken for her identical twin Geeta and is taken to Geeta's home. Meanwhile, Seeta's aunt and uncle are frantically searching for her and find Geeta. They attempt to force Geeta to go with them but, using some of her clever tricks, she escapes them and the police who have been searching for her. She then meets Ravi (Sanjeev Kumar) and, though he also mistakes her for Seeta, she goes home with him. Ravi is surprised by this "Seeta" and the Seeta he had met previously. Geeta realizes the cruelty that Seeta has been living under and vows to teach her aunt a lesson.

Meanwhile, the real Seeta is living in Geeta's house. Her surrogate mother has attributed her new docile attitude to shock. Here, Seeta meets Raka (Dharmendra), Geeta's friend and fellow performer. Raka is also surprised by "Geeta's" sudden gentle nature and desire to do housework. When he tried to coax her into performing, she is unable to do so. Ravi meanwhile falls in love with Geeta. At home, Geeta begins to set everything on a proper course. She resumes control of the money and restores her grandmother to the head of the household, where she belongs. Raka begins to fall in love with Seeta. Trouble begins brewing when Chachi's brother Ranjeet comes to visit and sees the real Seeta in a marketplace. He follows her and discovers the truth, which leads to a showdown in the villains' den and then marriage.

According to Salim Khan, one half of screenwriting duo Salim-Javed, the concept of Seeta Aur Geeta was inspired by the Dilip Kumar starrer Ram Aur Shyam (1967), but they altered the formula with twin female sisters. Seeta Aur Geeta subverted the formula by having the heroine Hema Malini eventually become the "hero" while male lead Dharmendra is in a mostly supporting role.

Ramesh Sippy initially wanted Nutan as Seeta and Geeta because he "saw the heroine as a mature woman with a child" but he was advised against casting a heroine who was "at a mature phase of her career when the hero, too, was getting along in age", he even selected Mumtaz however he had selected Hema Malini for this role. The film was also offered to popular actress Mumtaz but she refused the offer as she wasn't paid enough.According to Sippy, the film's budget costed 40 lakhs

All the songs were composed by Rahul Dev Burman and lyrics were penned by Anand Bakshi.

Box office

Domestically in India, the film grossed ?3.5 crore (US$4.61 million). Adjusted for inflation, this is equivalent to US$27 million (?175 crore) in 2016.

Overseas in the Soviet Union, the film grossed 13.8 million SUR^[b] (US$18.21 million,^[c] ?16.03 crore).^[d] in 1976^[18] Adjusted for inflation, this is equivalent to US$78 million (?517 crore)^[13] in 2016.

Worldwide, the film grossed ?19.53 crore (US$22.82 million). Adjusted for inflation, this is equivalent to ?1,155 crore (US$172 million) in 2016.

Awards

20th Filmfare Awards

Bohra Bros had made a television series based on this film which was aired on NDTV Imagine in 2009.^[19] Co-incidentally Hema Malini did a similar series on same plot called Kamini Damini which was aired on Sahara One on 2004.^[20]