There are 17 District Cooperative Milk Producers' Unions functioning in the State of Tamilnadu covering 30 Districts. There are 15 Dairies in District Co-operative Milk Producers' Unions with an installed processing capacity of 19.42 llpd. There are 36 Chilling Centres (Functional) in District Co-operative Milk Producers' Unions with installed chilling capacities of 13.55 llpd.

(1) Establishment of chilling centres

(2) Formation of new milk routes to collect milk produced by the members of the societies.

(3) Collection of milk from societies, process and pack in modern dairy plants by maintaining quality standards.

(4) Supply of quality milk to Chennai Metro under hygienic conditions.

(5) Fixation of procurement and selling price of Milk

(6) Increase of liquid milk sales by introducing innovative sales promotional activities.

(7) Supply of inputs to the members of the societies.

(8) Render Veterinary Health Service and emergency service to the cattle of members of primaries, to impart training on First aid and on Artificial insemination to the staff of member societies.

(9) Extending Artificial insemination services to the cattle owned by the members of Milk Cooperative Societies.

(10) Providing milk cans, Milk 'O' testers and LN2 containers.

(11) Salem, Erode, Madurai and Dharmapuri Unions are the Feeder Balancing Dairies. Surplus milk in the District Unions, after meeting their local sales is diverted to the nearest Feeder Balancing Dairies for conversion into milk products, such as Skim Milk Powder, Butter and Ghee.

(12) The three Cattle Feed Plants at Madhavaram, Erode and Kappalur are run by the Kancheepuram - Tiruvallur Union, Erode Union, Madurai Union respectively. The production capacity of these cattle feed plants is 100 MT per day each. The balanced cattle feed produced in the form of pellets and mash are supplied to the members of the Milk Co-operatives, livestock farms manned by the Animal Husbandry Department and to various local bodies including the Corporation of Chennai.