Wikipedia
Nattar
Nattars were an administrative body in the Tamil kingdoms of Chola, Pandya and Pallava, who had the right to sell and purchase land, and make them tax-free whenever such a request was made. Nattar generally meant an official of an area called nadu.
The institution of the nattar was well-defined. It was in charge of all matters pertaining to a village, including water-management. It was noted that: "If ruling class is taken to mean those with the power and authority to manage community resources, then the nattar was this class in Tamil country".