The Assam Land and Revenue Regulation, 1886 is a colonial regulation which existed in a land and population very different from the current state of Assam. This system persisted for over 100 years, resulting in a large number of people without any formal rights to the land that they had long cultivated, even when ownership had been passed down through generations, including cultivators, workers in the tea-garden, tribal families and families displaced by floods. A combination of successive erosion of the riverbed of the Brahmaputra and its tributaries and periodic flooding, coupled by the inadequate rate of cadastral survey, added to the problem and large numbers of Assam's rural population were deprived of legal status in the land, whether Khas (government) or Ceiling Surplus (cadastral surplus) land.A government-appointed committee headed by former Chief Election Commissioner H.S. Brahma, tasked with examining land rights of indigenous people in Assam, found in its 2018 report that close to 90% of the state's native population lacked formal land ownership documents, and that approximately 8 lakh indigenous families were entirely landless.