With reference to the history of India, "Ulgulan" or the Great Tumult is the description of which of the following events?

1. The question asks for the historical event described by the term 'Ulgulan' or 'Great Tumult'. 2. 'Ulgulan' is the term used specifically to refer to the tribal uprising led by Birsa Munda in the Chotanagpur plateau region (present-day Jharkhand) against the British colonial policies and the exploitation by outsiders (dikus) during 1899-1900. 3. Option (A), The Revolt of 1857, is known by various names like the Sepoy Mutiny or the First War of Independence, but not Ulgulan. 4. Option (B), The Mappila Rebellion of 1921, was a peasant uprising in the Malabar region of Kerala. 5. Option (C), The Indigo Revolt of 1859-60, was a peasant movement against exploitative indigo planters in Bengal. 6. Therefore, 'Ulgulan' is the description of Birsa Munda's Revolt of 1899-1900.