Section 3(4)(a) in Tamil Nadu Farmers' Management of Irrigation Systems Rules, 2002
(a)Every Water Users Association shall have the name of a village as its distinct name in which the major extent of the ayacut is situated or any other name as decided by the concerned members of the Water Users Association based on consensus. If there is more than one association in a village, then, such association shall be called by adding numerals to the distinct name. In case of irrigation tanks, the Water Users Association may be named by the name of the tank, if decided by the ayacutdars by consensus.