The "Index" is a colloquial way of describing the film's impact as a "reality check" for unhappy couples. The Divorce Spike:
Exploring the film that redefined the "happy ending" in Bollywood. Released in 2006, Kabhi Alvida Naa Kehna (KANK) Kabhi Alvida Naa Kehna Index
The film does not glorify infidelity but presents it as a symptom of emotional bankruptcy. Dev (Shah Rukh Khan) and Rhea (Preity Zinta) are trapped in a sexless, resentful marriage. Maya (Rani Mukerji) and Rishi (Abhishek Bachchan) are in a playful but intellectually empty marriage. Their affair is not just physical—it’s a desperate attempt to feel alive again. The "Index" is a colloquial way of describing
A bitter former football player whose career ended due to injury; married to Rhea. Maya Talwar Rani Mukerji Dev (Shah Rukh Khan) and Rhea (Preity Zinta)
The truth about Aman and Sangeeta's relationship comes out, and Dev learns that Sangeeta and Aman are in a relationship. Dev's feelings for Rhea resurface, and they finally confess their love for each other.
: A woman struggling with infertility and a lack of passion in her marriage.