These are the stories of seven dissident foreigners who fought to free India from the British Raj. Spanning the 19th and 20th centuries, their ranks include a British suffragette, an American missionary and one of India's earliest environmental campaigners.
This cast of fiercely anti-authoritarian characters were regarded in their lifetimes with great suspicion by those in power. So how exactly did they contribute to the struggle, and how are they remembered in India today?
Dan is joined by acclaimed historian of India, Ramachandra Guha, who reminds us that this divisive, international movement remains relevant to this day.