Kabhi Alvida Naa Kehna, also abbreviated as KANK, is a 2006 Indian Hindi-language musical romantic drama film directed by Karan Johar, who co-wrote the screenplay with Shibani Bathija. It was produced by Hiroo Yash Johar under the Dharma Productions banner. The film stars Amitabh Bachchan, Shah Rukh Khan, Abhishek Bachchan, Rani Mukerji, Preity Zinta and Kirron Kher. Set primarily in New York City, the narrative explores themes of marital infidelity, emotional dissatisfaction, and dysfunctional relationships, and was promoted with the tagline "A Love... That Broke All Relationships." The film marked a notable departure from Johar’s earlier family-centric dramas, opting for a more mature and controversial storyline.