Nana Sahib led the Kanpur rebellion during the Indian Rebellion of 1857. As the adopted son of the exiled Maratha Peshwa Baji Rao II, Nana Sahib believed that he was entitled to a pension from the English East India Company, but the underlying contractual issues are rather murky. The Company's refusal to continue the pension after his father's death, as well as what he perceived as high-handed policies, compelled him to revolt and seek independence from company rule in India. He forced the British garrison in Kanpur to surrender, then executed the survivors, gaining control of Cawnpore for a few days. He later disappeared, after his forces were defeated by a British force that recaptured Cawnpore. He was led to the Nepal Hills in 1859, where he is thought to have died.
Source: Wikipedia
