The greatest musical number ever, from the 1965 Bollywood flick Gumnaam.
If you’re thinking this looks or sounds like the clip used in Terry Zwigoff’s 2001 film Ghost World (one of my favorite movies ever! Love you, Thora Birch and Scarlett Johansson! Love you, Steve Buscemi!), then you are exactly correct.
(The song was stuck in my head, which led to my looking up the dance number on Youtube, which hence.)