The Revolt of 1857, also regarded as India First War of Independence is an extremely important event of Indian history. In this research paper, we have summarized the causes, impact, importance, and outcomes of the revolt. The Revolt of 1857 was a prolonged period of armed uprising as well as rebellions in Northern and Central India against British occupation of that part of the subcontinent. Small precursors of brewing discontent involving incidences of arson in cantonment areas began to manifest themselves in January Later, a large-scale rebellion broke out in May and turned into what may be called a full-fledged war in the affected region. This war brought about the end of the British East India Companys rule in India, and led to the direct rule by the British Government (British Raj) of much of the Indian Subcontinent for the next 90 years. The Indian Mutiny of 1857-59 was a widespread but unsuccessful rebellion against the rule of British East India Company in India which functioned as a sovereign power on behalf of the British crown.