Solution:Hali System was concerned with bonded labour.The Hali system was prevalent in agriculture, brick kilns, stone quarries, and other industries. In Uttar Pradesh, the Hali system was also known by other names, such as begar, bandhwa mazdoor, and bajgee. The Hali system was also prevalent in the hill districts of Dehradun, Tehri Garwal, and Uttarkashi.