The entire subject of machine drawing, mechanical drafting, and production drawing is covered in this well-known textbook. It uses the first-angle method of orthographic projection and I the metric system of length measurement. The third-angle projection technique hasn't entirely been disregarded, though. The fifty-first edition has been considerably expanded and thoroughly rewritten. To maximise the book's usefulness, numerous new illustrations and text passages have been added. Internal Combustion (I.C.) Engine Parts and Steam Engine Parts are the two distinct chapters that make up the chapter on engine parts. 52 self-interactive and self-learning practise modules have been added to the newly updated chapter on computer-aided drafting (CADr). It explains in a simple manner while using the principles of orthographic projection, shapes, and proportions and uses of simple machine parts, engine parts and boiler parts. The techniques of freehand sketching, dimensioning, conversion of pictorial views, sectional views and interpretation of views are treated in clear and simple manner. Most of the orthographic views are accompanied by the pictorial views of the objects to enable the students to visualize the shapes easily. The book covers the syllabi of Machine Drawing to meet the requirements of students of Mechanical Engineering Degree Examinations of all the Indian Universities as well as Diploma examinations conducted by various Boards of Technical Education, Certificate Courses as well as for I.T.I. students and also to the candidates reading for the A.M.I.E., U.P.S.C., G.A.T.E. and similar competitive and professional examinations.