The story is about twin girls, Seeta and Geeta (Hema Malini in a dual role), who were both separated at birth.

Seeta, the long-suffering heiress, is treated worse than a servant by her abusive, money-grubbing aunt, Kaushalya (Manorama), her spoilt daughter, Sheela (Honey Irani), and her equally cruel brother, Ranjeet (Roopesh Kumar), despite the fact that the family is living off Seeta's late parents' money.

Seeta's only consolations are her meek uncle, Badrinath (Satyen Kappu), and her elderly, wheelchair-bound grandmother (Pratima Devi).

Meanwhile, Geeta grows up to be a feisty girl raised in a slum and works as a street performer along with Raka (Dharmendra), her friend and neighbour.

However, things take a drastic turn when Ranjeet sees the real Seeta in a marketplace and discovers the truth.

As a result, Geeta's cover is blown and the police arrest her for impersonation, while Kaushalya and Ranjeet locate Seeta and bring her back to her life of mute slavery, abuse and confinement.

This leads to Seeta, Geeta, Raka and Ravi fighting against Ranjeet and his henchmen and have the police arrest them all for their crimes.

[2] 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.

Bohra Bros had made a television series based on this film which was aired on NDTV Imagine in 2009.

[17] Coincidentally Hema Malini did a similar series on same plot called Kamini Damini which was aired on Sahara One on 2004.