"Fanaa" was one of the most expensive Bollywood films during its time of release. The film's title is derived from the Islamic Sufi term "fanaa", meaning "destroyed" in Arabic, Persian, Urdu, and Hindi. The film was promoted with the tagline "Destroyed In Love..."; Khan and Kajol were romantically pairing for the first time with this film, but it marked their second collaboration after "Ishq", in which they were paired respectively opposite Juhi Chawla and Ajay Devgn. It also marked the comeback of Kajol, who was last seen in "Kabhi Khushi Kabhie Gham..." (2001).