In the Vedic period, the tax which the kings used to collect from the people was called "Bali". Bali was a form of tax or tribute that the king imposed on his subjects. It was collected in the form of various commodities such as grains, livestock, and other valuable goods. The purpose of collecting Bali was to finance the administrative and military activities of the king, as well as to maintain social harmony and order in the kingdom. Bali was considered a duty of the people towards their king, and failure to pay it could result in penalties or punishment. It is important to note that Bali was distinct from other forms of taxes or revenues collected by the king, such as Vidatha, Varman, and Kara, which had different purposes and were collected in different ways.