The document summarizes the various causes that led to the revolt of 1857 in India. The economic exploitation of India by the British hurt many sections of society, while the annexation of territories displaced rulers and angered the ruling classes. Social reforms introduced by the British were seen as interference in Indian customs. Growing Christian missionary activities and conversions caused religious concerns. The Indian soldiers faced poor treatment, low pay and the introduction of greased cartridges seen as offensive to Hindus and Muslims, serving as the immediate spark for the revolt to begin.