Starring Khan and Deepika Padukone,[3] it features Rishi Kapoor and Giselli Monteiro in supporting roles with Neetu Singh in a special appearance.

Upon release, it received positive reviews from critics for its novel concept, story, screenplay, direction, dialogues, soundtrack, humor, costumes, cinematography and performances of the cast.

[5] Love Aaj Kal led the 55th Filmfare Awards with 12 nominations including Best Film, Best Director (Ali), Best Actor (Khan) and Best Actress (Padukone), and won 2 awards – Best Lyricist (Irshad Kamil for "Aaj Din Chadheya") and Best Choreography (Bosco–Caesar for "Chor Bazaari").

Meera goes to India, while Jai stays in London, hoping to be called to San Francisco, where working at Golden Gate Inc. is his dream job.

Jai begins to date a Swiss girl named Jo, while Meera returns the feelings of her boss, Vikram Joshi.

Jai is called to his dream job in San Francisco the same day that Meera realizes her marriage is a mistake.

[11] Saif Ali Khan, also the producer was cast to play the dual roles of Jai and Veer.

[15] Neetu Kapoor, was cast in a special appearance as older Harleen, marking her return to cinema after a 25-years long hiatus.

Pritam revealed in a 2014 interview that Imtiaz Ali wanted A. R. Rahman to compose the music of the film, but the latter was available only for his next, Rockstar (2011).

Joginder Tuteja of Bollywood Hungama noted, "It sounds too good to be true but Pritam seems to have kept all his brilliant compositions on hold between Jab We Met and Love Aaj Kal.

"[21] Chandrima Pal of Rediff.com stated, "The strength of Love Aaj Kal, lies in the unhurried pace and the variety in the choice of genres, arrangement, treatment.

"[22] Ruchika Kher from Hindustan Times noted, "Pritam has done a good job with the soundtrack and created songs that are sure to become hits.

"[23] Anand Vaishnav of News18 stated, "Love Aaj Kal has a mix of situational tracks and guaranteed chartbusters.

[26][27] The producers of the film agreed to market tie-ups with 2009 ICC World Twenty20, Shoppers Stop and Bajaj Allianz Life Insurance.

With Bajaj Allianz, they have a tie-up to share the special moments where they could win a chance to meet the lead actor Saif Ali Khan, the protagonist and the producer of the film.

[31] Love Aaj Kal received positive reviews upon release, with praise for its novel concept, story, screenplay, direction, dialogues, soundtrack, humor, costumes, cinematography and performances of the cast.

Taran Adarsh of Bollywood Hungama gave the film 4 stars out of 5 saying, "On the whole, Love Aaj Kal is for the young and romantic at heart.

"[32] Nikhat Kazmi of Times of India gave the film 4 stars in a scale of 5, concluding that "Go watch it for its GenNow feel and its ekdum [sic] modern appeal.

[42][43] Love Aaj Kal was remade in Tollywood in 2011 titled Teen Maar starring Pawan Kalyan, Trisha Krishnan, and Kriti Kharbanda.

[59][60] Comparing the film with its reboot version, Nairita Mukherjee of India Today stated, "Love Aaj Kal was ahead of its time.

[61] Utkarsh Mani Tripathi from Vogue praised the film and noted, "Imtiaz Ali has portrayed romance in less upper-class settings, to be sure, but rarely has he been more relatable and prophetic.