Professor G.S. Roonwal, formerly Professor and Head of the Department of Geology, University of Delhi and Director, Centre of Geo-resources, University of Delhi South Campus. He is at present Honorary Visiting Professor in the Inter University Accelerator Centre, an autonomous Institute of UGC-MHRD. He is a prominent geoscientist of international stature. He is a winner of the National Mineral Award of the Ministry of Mines, Government of India, and has received several awards and medals by the professional societies. He has worked in Europe and North America in well-several known institutions and participated in oceanographic expeditions. Professor Roonwal has made significant contribution in land and marine geology which includes exploration assessment and eventually mining and environmental sustainability of land and sea-floor mineral deposits such as volcanogenic massive sulfides which contain valuable metals such as zinc, copper and associated gold and platinum. He also authored books on land and sea-floor mineral resources. His books such as: Mining and Environmental Sustainability (2014), Iron Ore Deposits and Banded Iron Formation of India (2012), The Story of Science from Antiquity to the Present (Geology Section)(2010), The Indian Ocean Exploitable Mineral and Petroleum Resources and edited Books entitled “India’s Exclusive Economic zone” (with Dr. S.Z. Qasim), Living Resources of India’s Exclusive Economic Zone” (with Dr. S.Z. Qasim) and Mineral Resources and Development (2005)(Roonwal et. al.). He has written a number of scientific papers published in established journals. Professor Roonwal is listed in several biographical citations such as Marquis Who’s Who in the World, since 1999 and Marquis Who’s Who in Asia since 2010.