Synopsis :
Ashok(Shammi Kapoor) cannot forget that his childhood prank has cost his little sister her eyesight. To atone, he wants to restore her vision but cannot afford the cost of the operation. So he takes up a strange assignment. Sarojini Devi(Lalita Pawar) who hates marriages because her twin sister had a disastarous one, hires Ashok to break up the love affairs of her two younger granddaughters and make her eldest granddaughter Asha(Babita), who hates men, amenable to marriage.

Ashok carries out his task admirably, but also falls in love with Asha. Furious, Sarojini Devi first exposes him and then sacks him. Ashok goes home to find that his blind sister Roopa(Jayanthi) has been raped and thinks that she has committed suicide. Swearing revenge he sets out in search of the rapist(Pran), who becomes Ashas fiance and abducts her grandmother to replace with her evil twin sister.

Will Ashok find his sister? Will Roopa get back her eyesight and her brothers love?

Tumse Accha Kaun Hai is memorable for Shammi Kapoor & Lalita Pawars performance and has some foot-tapping music by Shanker-Jaikishan including the title song, Tumse Achha Kaun Hai, counted amongst the many hit numbers that Mohd.Rafi sung for Shammi Kapoor.