Dr. S. P. Sinha Ray: Dr. S.P. Sinha Ray obtained PhD (Science) degree from Jadavpur University in 1974. He joined Geological Survey of India in 1966, subsequently his service was transferred to Central Ground Water Board in1972. He retired as Member (SML), Central Ground Water Board in 2002. At present, he is working as Chairman Fluoride Task Force, PHED, West Bengal; Member, Arsenic Task Force, West Bengal; Chairman, Earth Science R&D Committee, DST, Govt. of West Bengal; Fellow, West Bengal Academy of Science; President Emeritus, Centre for Ground Water Studies.He has more than 50 years of extensive experience in ground water exploration, development and management. By virtue of his long association with the apex body of the country dealing with ground water resources, he has acquired a very rich experience in the particular subject. Besides having vast knowledge about the subject within the country, he has also gained knowledge and working experience in other countries like Algeria, Bangladesh, USA, South Korea and Zimbabwe. He has also contributed in various national and international publications.He attended training on “Groundwater Resources Development” organized by Overseas Technical Cooperation Agency, Japan, Tokyo in 1973 and training on “Computer and Databases” in San Juan, Puerto Rico, by U.S. Geologist Survey in 1992.He has edited the book on “Groundwater Development Issues and Sustainable Solutions” published by Springer Nature, Singapore in 2019 and book on “Water Resources of North-Eastern and Eastern India status, issues and strategies” published by Geological Society of India, Bangalore in 2021. He has also contributed a few book chapters on different facts of groundwater.Dr. Achiransu Acharyya: Dr. Achiransu Acharyya is a Senior Faculty member in the Department of Economics at Visva-Bharati (A Central University) situated in Santiniketan,West Bengal where he has been teaching for the last 19 years.Dr. Acharyya’s area of research is mainly agriculture and natural resource economics and economics of water resources. He has several journal and book publications to his credit. He has done several international and national research projects.He has visited the University of Oregon, USA on a Teaching cum Research Fellowship. He has also visited University of Nijmegen in The Netherlands as Visiting Scholar. He has received the James D. Wolfensohn Award from The World Bank and the Dr. N.A. Mujumdar Prize from the Indian Society of Agricultural Economics. He has worked as a Consultant Economist for the Asian Development Bank. He is the Associate Editor of a reputed Bengali social science journal titled ‘Anustup’.

• Adsorption of Heavy Metal with Aged Microplastic in Groundwater Under Varying Organic Matter Content.- Groundwater Quality and Contaminations in India.- Status of Groundwater Arsenic Contamination in the States of North-East India: A Review.-  Spatio-Temporal Variation in Physico-Chemical Properties of Groundwater Within Arsenic Affected Shallow Alluvial Aquifers of Murshidabad District, West Bengal, Eastern India.- A Vivid Picture of the Distribution, Impact and Consequences of Fluoride in Indian Perspective.- Analysis of Chemical Characteristics of Fluoride Rich Waters in Deeper Coastal Aquifers of Alapuzha District, Kerala State, South India for Domestic and Irrigation Purposes.- Geochemistry of Saline Ground Waters in Coastal Orissa.- Vulnerability Assessment of Groundwater in Coastal Aquifer.- Assessment of Groundwater Quality and its Suitability for Irrigation in Different Groundwater Availability Regimes of Haryana.- Characterization and Quality Assessment of Groundwater in Parts of Damodar River Basin.- Trends in the Groundwater Geochemistry, Quality and Pollution Assessment of the Greater Guwahati, Assam: The Largest City in North East India.- Trend of Groundwater Regime and Hydrochemical Characteristics of Aquifer Systems in Central India – A Detailed Overview of Chhattisgarh State.- Occurrence of Arsenic in Groundwater Resources of Majuli River Island in Brahmaputra River Basin.- The Economic Cost of Fluoride Contamination in Groundwater: A Case Study from Birbhum District of West Bengal.- Use of Arsenic-Rich Groundwater in Irrigation-Adverse Effects on Food Chain.-  Health Exposure of Different Aged Children From a Severely Arsenic-Exposed Block, West Bengal, India: A Future Risk Appraisal.-  Fluoride Contamination in Ground Water – Some Mitigation Options.- High Arsenic Groundwater Contamination Issues, Causes and Mitigation Strategies with Successful Case Histories.

Dr. S. P. Sinha Ray: Dr. S.P. Sinha Ray obtained PhD (Science) degree from Jadavpur University in 1974. He joined Geological Survey of India in 1966, subsequently his service was transferred to Central Ground Water Board in1972. He retired as Member (SML), Central Ground Water Board in 2002. At present, he is working as Chairman Fluoride Task Force, PHED, West Bengal; Member, Arsenic Task Force, West Bengal; Chairman, Earth Science R&D Committee, DST, Govt. of West Bengal; Fellow, West Bengal Academy of Science; President Emeritus, Centre for Ground Water Studies.He has more than 50 years of extensive experience in ground water exploration, development and management. By virtue of his long association with the apex body of the country dealing with ground water resources, he has acquired a very rich experience in the particular subject. Besides having vast knowledge about the subject within the country, he has also gained knowledge and working experience in other countries like Algeria, Bangladesh, USA, South Korea and Zimbabwe. He has also contributed in various national and international publications.He attended training on “Groundwater Resources Development” organized by Overseas Technical Cooperation Agency, Japan, Tokyo in 1973 and training on “Computer and Databases” in San Juan, Puerto Rico, by U.S. Geologist Survey in 1992.He has edited the book on “Groundwater Development Issues and Sustainable Solutions” published by Springer Nature, Singapore in 2019 and book on “Water Resources of North-Eastern and Eastern India status, issues and strategies” published by Geological Society of India, Bangalore in 2021. He has also contributed a few book chapters on different facts of groundwater.Dr. Achiransu Acharyya: Dr. Achiransu Acharyya is a Senior Faculty member in the Department of Economics at Visva-Bharati (A Central University) situated in Santiniketan,West Bengal where he has been teaching for the last 19 years.Dr. Acharyya’s area of research is mainly agriculture and natural resource economics and economics of water resources. He has several journal and book publications to his credit. He has done several international and national research projects.He has visited the University of Oregon, USA on a Teaching cum Research Fellowship. He has also visited University of Nijmegen in The Netherlands as Visiting Scholar. He has received the James D. Wolfensohn Award from The World Bank and the Dr. N.A. Mujumdar Prize from the Indian Society of Agricultural Economics. He has worked as a Consultant Economist for the Asian Development Bank. He is the Associate Editor of a reputed Bengali social science journal titled ‘Anustup’.

• Adsorption of Heavy Metal with Aged Microplastic in Groundwater Under Varying Organic Matter Content.- Groundwater Quality and Contaminations in India.- Status of Groundwater Arsenic Contamination in the States of North-East India: A Review.-  Spatio-Temporal Variation in Physico-Chemical Properties of Groundwater Within Arsenic Affected Shallow Alluvial Aquifers of Murshidabad District, West Bengal, Eastern India.- A Vivid Picture of the Distribution, Impact and Consequences of Fluoride in Indian Perspective.- Analysis of Chemical Characteristics of Fluoride Rich Waters in Deeper Coastal Aquifers of Alapuzha District, Kerala State, South India for Domestic and Irrigation Purposes.- Geochemistry of Saline Ground Waters in Coastal Orissa.- Vulnerability Assessment of Groundwater in Coastal Aquifer.- Assessment of Groundwater Quality and its Suitability for Irrigation in Different Groundwater Availability Regimes of Haryana.- Characterization and Quality Assessment of Groundwater in Parts of Damodar River Basin.- Trends in the Groundwater Geochemistry, Quality and Pollution Assessment of the Greater Guwahati, Assam: The Largest City in North East India.- Trend of Groundwater Regime and Hydrochemical Characteristics of Aquifer Systems in Central India – A Detailed Overview of Chhattisgarh State.- Occurrence of Arsenic in Groundwater Resources of Majuli River Island in Brahmaputra River Basin.- The Economic Cost of Fluoride Contamination in Groundwater: A Case Study from Birbhum District of West Bengal.- Use of Arsenic-Rich Groundwater in Irrigation-Adverse Effects on Food Chain.-  Health Exposure of Different Aged Children From a Severely Arsenic-Exposed Block, West Bengal, India: A Future Risk Appraisal.-  Fluoride Contamination in Ground Water – Some Mitigation Options.- High Arsenic Groundwater Contamination Issues, Causes and Mitigation Strategies with Successful Case Histories.