SUBHASH MISHRA Dhanbad, June 7: The country’s coal mines will soon be free of the threat of fire and explosion. The Department of Mining Engineering at IIT Indian School of Mines (ISM) researched a ‘Raksha Kawach’ (shield) to avoid spontaneous fire and explosion in coal mines.   Dr Devi Prasad Mishra, Associate Professor of Mining … Continue reading IIT ISM researches ‘Raksha Kawach’ to prevent spontaneous explosion in coal mines