where did the sepoys break out in open revolt on may 10 1857
Indian Rebellion of 1857 The rebellion began on 10 May 1857 in the form of a mutiny of sepoys of the Company's army in the garrison town of Meerut, 40 miles northeast of Delhi (now Old Delhi). It then erupted into other mutinies and civilian rebellions chiefly in the upper Gangetic plain and central India,[b][7][c][8] though incidents of revolt also occurred farther north and east.[d][9] The rebellion posed a considerable threat to British power in that region,[e][10] and was contained only with the rebels' defeat in Gwalior on 20 June 1858.[11] On 1 November 1858, the British granted amnesty to all rebels not involved in murder, though they did not declare the hostilities formally to have ended until 8 July 1859.
Doctrine of lapse With the increasing power of the East India Company, discontent simmered among many sections of Indian society and the largely indigenous armed forces; these rallied behind the deposed dynasties during the Indian Rebellion of 1857, also known as the Sepoy Mutiny. Following the rebellion, in 1858, the new British Viceroy of India, whose rule replaced that of the British East India Company, renounced the doctrine.[4]