Under the World Bank aided Karnataka Dairy Development Projects, the activities on Dairy Development were taken up in the year 1975. The Mysore Coop Milk Producers Societies Union Ltd was established on 23.11.1976, having the jurisdiction extended to the entire Mysore District and Five Taluks of Mandya District. The Union undertook the work of organization of Milk Co-operatives in ‘AMUL Pattern’ with the main objective of socio-economic reformation of the farmers in the rural areas through Dairying as main subsidiary occupation.

Mysore Dairy with the capacity of 10 TLPD was started in the year 1965 under the control of the Department of Animal Husbandry and Veterinary Services of Karnataka State, which was transferred to Karnataka Dairy Development Corporation in the year 1974. The capacity was expanded to 60 TLPD in 1980 and transferred to the Karnataka Milk Federation in 1984. The capacity was expanded to 100 TLPD under the Operation Flood II and further expanded to 150 TLPD under OF III Programme. As per the Government policy the Dairy and its Chilling Centres were handed over to MYMUL on 01.06.1987. Present main dairy capacity was expanded to 3 LKPD in the year 2008- 2009.

Later the Union was bifurcated into Mysore and Mandya District Co-Operative Milk Producers Societies Union Ltd from 01.04.1987. Consequent to the bifurcation of Mysore District into Mysore and Chamarajanagar Districts, this Union is renamed as Mysore-Chamarajanagar District Coop Milk Producers Societies Union Ltd.

Later the Union was bifurcated into Mysore and Chamarajanagara District Co-Operative Milk Producers Societies Union Ltd from 01.04.2015, this Union is named as Mysore- District Coop Milk Producers Societies Union Ltd. In the year 2019 new Mega dairy was started with capacity of 6 LLPD expandable to 8 LLPD.