Kabir Khan: Project was in the making for 20 years

Revisiting those events that concerned India before and after the second World War, the show, a source says, was filmed in locations that were crucial to the events that transpired then. "We shot in Thailand, Singapore and Malaysia. [Certain] locations were recreated in Mumbai on a mammoth scale, even if that meant investing heavily for a mere four-day shoot that required the set-up. The team wanted to make the series look as authentic as possible," says the source.

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