Mangarh massacre
1913 CE.
Shown on the map at 23.350°, 73.987°.
The Mangarh massacre occurred on 17 November 1913, when British troops attacked the stronghold of Govindgiri Banjara at the end of the Bhil Revolt. It occurred on a hillock in the Mangarh Hills of Rajasthan. There are no accurate figures for the number of Bhil, Banjara who were killed, but estimates range from "several Bhils died" to the oral tradition that 1,500 Banjara tribals were killed.
Text from the Wikipedia article Mangarh massacre, licensed CC BY-SA 4.0.