12th International conference on mineral processing has begun in Udaipur on Thursday. Joint secretary in Ministry of Mines G Srinivas inaugurated the 3 days conference.He said that mining industry has played important contribution in development of countries economy.On this occasion Chief controller of Indian Bureau of Mines C.S. Gudewar said that positive aspects of mining should be highlighted.In this conference mining experts from different countries will discuss on various methods and new trends in mining.