Love Aaj Kal is a romantic comedy movie about a modern-day London based couple Jai (Saif) and Meera (Deepika). Life pulls them in different directions, which is a true test of commitment and they decide to be practical. They are very happy together but do not believe in tying each other down.
The film's narrative style draws parallels between two love stories - one set in the 1960s and the other in the new millennium.
Love Kal Delhi, Calcutta - 1965. Veer Singh is struck by a thunderbolt when he sees Harleen for the first time. Soon after, he stands under a tree and swears that "is janam mein aur har janam mein... yehi meri votti banegi - Harleen Kaur." He travels a thousand kilometers by train to stand under her balcony only to have a glimpse of her face. And yet not speak a word with her.
Love Aaj Kal Veer does not understand how Jai can treat matters of the heart without passion, like a financial transaction. Jai does not understand how Veer Singh could have been so naive and silly about Harleen in the days of his youth. But as both stories unfold, we realize that the process of relationship might be different in different eras, but the experience of being in love remains the same. So there is the frolic and despair of modern living, the liberation and confusion. And there is the past - the times of innocence and compulsion. And there is distance, and the fondness that increases with distance. Gaps widen between two people, but bridges keep growing too.