This university level text book is written to serve as a ready reference for students of agricultural and civil engineering degree programs. It provides an explicit description of the theoretical concepts on groundwater, well hydraulics, well construction, water lifting devices, waterlogged soils, soil permeability measurement, equations for evaluating depth and spacing of drains, surface and subsurface drains, tube well drainage system, and salt affected soils. Fundamentals of Groundwater and Drainage Engineering, is a book for undergraduate as well as postgraduate students for refreshing their basic knowledge. It is especially useful for the students preparing for the examinations of ASRB and JRF.