Machining is one of the basic and very important courses for the mechanical undergraduate students. This process comes under the subtractive manufacturing processes where in material is removed. This course gives the basic understanding of the various machining processes and its physics. The mentioned syllabus is systematic order to understand gradually, importance of machining, machining region mechanism, tool signatures, tool life, multipoint machining processes, cutting fluid, cutting fluid emissions and its effect on human kind. This course also gives emphasis on cutting fluid emissions and its effect on operators, environment and water pollution. How to develop the eco-friendly cutting fluids as an alternative to commercial miner oils. Development of sustainable cutting fluids application techniques to improve the machining performance. This course is systematically arranged and taught in smooth as well as clear way so that students understand easily. (from nptel.ac.in)