The renewed spotlight on '3 Idiots' has revived one of Bollywood's longest-running debates: who was the real inspiration behind Rancho, the film's iconic protagonist? While many have linked the character to a well-known education reformer over the years, filmmaker Rajkumar Hirani, producer Vidhu Vinod Chopra and actor Aamir Khan have all offered different explanations about the origins of Phunsukh Wangdu, making the mystery even more intriguing.