A K DasDr. Sri Ajoy Kumar Das has put in more than 41 years of overall experience with around 10 years in operation and management of both UG &OC coalmines of Western Coalfield Ltd. and balance in Marketing with M/s Greaves Cotton Ltd and Mahindra & Mahindr. Dr. Das had undergone intensive training in implementation of Modern Mining machines in U.K, Germany, France, and Sweden. In addition to above, he has presented several papers on Longwall Mining, High Speed Roadway Drivage, Dust control in UG Mines and Modern Roof Bolting Techniques in National and International Forum. He is presently Hon. General Secretary of ISM Alumni Association Kolkata Chapter mainly connected with dissipation of knowledge on Earth Science and Technology. Read More Read Less