A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress. Fluid Mechanics is the study of fluids at rest (fluid statics) and in motion (fluid dynamics). This course is an introductory course which has a wide scope in several fields of engineering emphasizes on the fundamentals of fluid mechanical principles and application of these to solve real life problems. Special attention is focused towards deriving all the governing equations starting from the fundamental principle of fluid mechanics. The content of the course is well balanced between the physical concepts, mathematical modelling along with industrial examples of practical importance.Thus, attending this course Mechanical, Aeronautical/Aerospace, Civil and Chemical engineers will gain theoretical knowledge of principle of fluid mechanics and fluid dynamics and its application in real life and solve fluid related problems by adopting appropriate laws/theory and principle to analyse and interpret the flow characteristic and dynamics of flow field for various engineering applications.