""Kal Aaj Aur Kal is a story of yesterday today and tomorrow three generations brought together to swim in the river of time. Three generations of a family represented by Diwan Saheb (Prithviraj Kapoor) his son Ram (Raj Kapoor) and Ram`s son Rajesh (Randhir Kapoor). Diwan Saheb lives in the past while his grandson Rajesh studying in London is ambitious and impatient for what the future holds.""