R.K. Sahu is a retired Professor in Botany with 30 year of teaching and research experience. He has done post doctoral research work at Calcutta University and New York University Medical Centre. He has 50 publications in National and International Journals. He has handled two U.G.C. Major Research Projects, One Environment Project funded by Indo-Norwegian Corporation. Recently he is engaged in a project entitled ""Antioxidant activity of some important Medicinal Plants in vivo and in vitro"". He has participated in many National and International seminars and recognized as Scientist of repute. A.K.Sahoo is an Assistant Professor in College of Forestry under Orissa University of Agriculture and Technology, Bhubaneswar, Orissa, India and presently CCPI, NAIP on Carbon Finance, a consortium project of National Agricultural Innovation Project under Component-I funded by Indian Council of Agricultural Research, New Delhi under the support of World Bank. For the last 23 years or so, Dr. Sahoo has worked in various fields of forest ecology, forest biodiversity and environment and has full authority in areas of ecological and economic impact assessment, natural resources management, ecosystem analysis, biodiversity conservation and other environmental mitigation studies. Presently his group is perusing study on climate mitigation and improving livelihood through CDM A/R framework under Kyoto protocol of UNFCCC. He has also about 20 years of teaching experience in the subjects' biodiversity, conservation, forest ecology & environment management .He published a good numbers of research papers in journals of national and international repute and published one text book on Forest Ecology & Biodiversity for UG students of Forestry and another book on Medicinal Plants which are highly appreciated by many workers and researchers in the country. Nalini Sadangi is a Lecture in Botany with 10 years of teaching and field research experience in the field of Ethnobotany. She has worked with medicinal plants and the traditional knowledge practices of tribals of Kalahandi District. She published a good number of papers on medicinal flora of Kalahandi district in reputed journals. Kalyani Singh, a lecturer in Biotechnology, presently working as Programme Officer in a Civil Society, Health and Development Initiative (HDI) under the support of FAO, Rome. She had seriously worked on traditional knowledge practices and wide use of medicinal plants by tribals of Kalahandi district. Further, she has worked on active ingredients of medicinal plants and published a number of papers in good journals. Gayatri Nahak, a Research Associate, presently working in a U.G.C sponsored adhoc project on ethnobotany in B.J.B (A) College, Bhubaneswar, Odisha (India). She had contributed a lot on collection, compilation of traditional knowledge on ethnobotany of many tribals of western Orissa.