Diploma in Mechanical Engineering is a 3-year Diploma certificate program. This course can be pursued by students who have passed the 10th board examination. Mechanical Engineering is one of the oldest branches of Engineering. It is one of the core branches. Mechanical Engineering is the branch of Engineering that deals with design, manufacturing, and operation of machinery. This branch uses concepts of engineering, physics, and material science for the design, manufacturing, operation, and maintenance of mechanical systems. Concepts of mechanical engineering extend along to other engineering branches also. This engineering branch touches our day-to-day lives directly or indirectly.