Bharat Gold Mines Limited Wikipedia
In 1972 the Bharat Gold Mines Limited (BGML) was established by the Government of India under the Ministry of Mines and the Kolar mines were handed over to the BGML to be run as a PSU of the central government. By that time the last three remaining mines of Kolar viz. Mysore, Champion and Nandydroog were already beginning to run their course.