what was the reason for the sepoy rebellion
Causes of the Indian Rebellion of 1857 The sepoys, a generic term used for native Indian soldiers of the Bengal Army derived from the Persian word sepāhī (سپاهی) meaning "infantry soldier", had their own list of grievances against the British East Indian Company (BEIC) administration, caused mainly by the ethnic gulf between the European officers and their Indian troops. The spark that led to a mutiny in several sepoy companies was the issue of new gunpowder cartridges for the Enfield rifle in February, 1857. A rumour was spread that the cartridges were made from cow and pig fat. Loading the Enfield required tearing open the greased cartridge with one's teeth. This would have insulted both Hindu and Muslim religious practices; cows were considered holy by Hindus while pigs were considered unclean by Muslims.[1] Underlying grievances over British taxation and recent land annexations by the BEIC were ignited by the sepoy mutineers and within weeks dozens of units of the Indian army joined peasant armies in widespread rebellion. The old aristocracy, both Muslim and Hindu, who were seeing their power steadily eroded by the East India Company, also rebelled against British rule.
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]