The sepoy rebellion broke out in response to Britain's lack of respect for religious beliefs and traditions of the sepoys.
Explanation:
The sepoy mutiny was carried out by the sepoys who worked in British military forces in India. The sepoys were Indians and they were from Hindu or Islamic faith. According to Hindu faith cow is a holy animal mentioned in ancient religious texts.
According to Islam faith pork meat is forbidden food. The Enfield rifle cartridges used in the force at that time contained fats of beef and pork. This was against the religious faith of the Hindus and Muslims and it triggered the protest which came to be known as the sepoy mutiny.