Section 14(1)(b) in Tamil Nadu Co-operative Societies Rules, 1988
(b)"dairy society" means a society which has as its principal object the arranging for, and undertaking of, production of milk or purchase of milk produced by its members and storing, processing and marketing of such milk and its products or the supply of milk and its products to its members and includes any society which has as its principal object the provision of facilities for the operation of a dairy society;