Sapna, the daughter of the Saigal family's driver is a simple fun-loving girl, but her dreams are not simple. She dreams about riches and day-dreams about her dream man. Vijay Saigal and Vicky Saigal, both heirs to Saigal Industries have almost all the qualities of a dream man..... almost, because "All work and no play" makes Vijay a dull boy and "All play and no work" makes Vicky an outrageous flirt, as he does not believe in the affairs of the hearts, but only in affairs. But even Sapna is not made of the stuff, dream girls are made of..... not until she becomes a successful model and transforms into a beautiful girl does she become Vicky's dream girl. But Sapna's success hasn't changed her status. She is still the driver's daughter and Mrs. Shanti Devi may overlook her son's affairs with rich girls but not with a driver's daughter Big brother Vijay takes upon himself to iron out the differences, but himself gets smothered by Sapna's live-wire charm and subsequently her beauty dazzles him and he takes a break from his work and goes through the process of falling in love with her. In this complex situation fun takes a dramatic exit from the lives of these fun-loving people and love becomes a serious business. Serious to the extent that one brother is ready to give his life for love and the other is ready to sacrifice his love for brother's life.
Love can be as slippery as walking on the snow, can be as biting cold as the mountain breeze.....but love never fails in the rains.... as autumn always comes after the rains.... YEH DILLAGI is as pleasant and refreshing as the autumn.
(From the official press booklet)