This book entitled "Biogeochemistry of Carbon, Nitrogen and Phosphorous in Yamuna River Basin" is my research work carried out in the School of Environmental Sciences, Jawaharlal Nehru University, New Delhi. After green revolution and industrialization the nutrient flux into the river has greatly been increased.The biogeochemistry of nutrients in the rivers has been altered by these anthropogenic activities. Therefore, this book would prove to be useful for academicians and scientists who are working in the field of nutrient dynamics, and biogeochemistry of river.