Kabhi Khushi Kabhie Gham... filmed at Filmistan Studio, Mumbai. A London disco set, built in a Mumbai studio, is where Rohan turns up. On screen it's London disco.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? everything filmed in Mumbai is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Mumbai and it tells you what was shot around you, how to get there, and whether you can actually go in.
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