Karnataka Cooperative Milk Producers' Federation Limited (KMF) is the Apex Body for the dairy co-operative movement in Karnataka. It is the second largest dairy co-operative amongst the dairy cooperatives in the country. In South India, it stands first in terms of procurement as well as sales. One of the core functions of the Federation is the marketing of Milk and Milk Products. The Brand "Nandini" is the household name for Pure and Fresh milk and milk products. KMF has 15 Milk Unions covering all the districts of the State which procure milk from Primary Dairy Cooperative Societies (DCS) and distribute milk to consumers in various Towns/Cities/Rural markets in Karnataka.

Karnataka Dairy Development Cooperation (KDDC), the first-ever World Bank/International Development Agency-funded Dairy Development Program in the country started in Karnataka on co-operative lines with the organisation of Village Level Dairy Co-operatives in 1974. The AMUL pattern of dairy co-operatives started functioning in Karnataka from 1974-75 with financial assistance from World Bank/IDA, Operation Flood II & III.

KMF is one of the few federations in the country that have converted dairying from a subsidiary occupation into an industry. It has created a self-reliant rural economy through veterinary health services, AI breeding, cattle feed, milk procurement, processing and marketing.

KMF sells all milk and milk products under the NANDINI brand name. Their impact is evident in the large-scale patronage by farmers and absence of major private players in Karnataka's rural dairy sector.