Development Following the commercial success of his directorial debut
Kuch Kuch Hota Hai (1998),
Karan Johar began developing a new project centered on themes of family, tradition, and generational dynamics. The initial concept revolved around two daughters-in-law within a joint family, but on the advice of his cousin and filmmaker
Aditya Chopra, Johar restructured the narrative to focus on the relationship between two brothers, believing this would allow for stronger male protagonists. Although Johar cited
Yash Chopra's
Kabhi Kabhie (1976) as a key inspiration, particularly its exploration of romantic and familial relationships across generations, the film is corely based on
Bengali film
Tumi Je Aamar. He acknowledged the influence of that film, Johar stated that
Kabhi Khushi Kabhie Gham would differ significantly in its tone and aesthetic. The title of the film was stylized with an additional "e" in the second "Kabhi", based on numerological considerations. In interviews, Johar emphasized the emotional and relational core of the story, stating: "My film is about relationships, about sons going up to their fathers and saying they love them." He characterized the project as a more mature and sophisticated counterpart to his earlier work, describing
Kuch Kuch Hota Hai as "frothy and bubble-gummish" in contrast. The film aimed to balance heightened emotional drama with opulent visuals and cross-generational appeal. Prior to principal photography, Johar collaborated with costume designers
Manish Malhotra,
Shabina Khan, and
Rocky S to curate distinct wardrobes for each character. The team sourced clothing and accessories from multiple cities including
London,
Milan,
New Delhi, and various locations in the United States. Johar did not hold extensive cast rehearsals, with the exception of an emotionally pivotal scene between
Amitabh Bachchan and
Hrithik Roshan. Other key crew members included choreographer
Farah Khan, production designer
Sharmishta Roy, and cinematographer Kiran Deohans.
Filming (pictured) was featured as the mansion of the Raichand family in the film.|alt=A large country house in England
Principal photography commenced on 16 October 2000 in
Mumbai, beginning with the song sequence "Bole Chudiyan", which featured
Hrithik Roshan,
Kareena Kapoor,
Shah Rukh Khan, and
Kajol.
Amitabh and
Jaya Bachchan joined the production a few days later. During the initial days of filming, Johar experienced exhaustion and briefly fainted on set but continued directing while resting off-camera. To recreate the
Chandni Chowk setting for the film’s first half, production designer
Sharmishta Roy led the construction of detailed sets at
Film City, Mumbai. The team used reference photographs and materials sourced from the original location to enhance authenticity. Roy later received the
Filmfare Award for Best Art Direction for her work, which included constructing 18 to 19 sets, including the interior of the Raichand mansion, which was built from scratch and adorned with imported artwork and luxury décor to convey the family's affluence. The second half of the film was set and shot in the United Kingdom, with Johar selecting
London for its personal significance. Filming took place at several notable sites including the
Millennium Stadium in
Cardiff,
Bluewater Shopping Centre in
Kent,
Blenheim Palace,
St Paul's Cathedral, and the
River Thames. Exterior shots of the Raichand estate were filmed at
Waddesdon Manor. During the shoot at Bluewater, a large crowd gathered to watch a scene featuring
Jaya Bachchan and
Shah Rukh Khan, which led to production delays and prompted mall authorities to request that filming be completed within two hours. The romantic song "Suraj Hua Maddham", featuring Khan and
Kajol, was filmed at the
Pyramids of Giza in
Cairo,
Egypt. Due to lighting limitations, filming was restricted to early morning hours and extended over several days. During the shoot, Kajol sustained a minor injury after a fall. ==Themes==