The polytechnic Diploma or Diploma in Engineering course is a program focused on practical and skills-oriented training. It is a Engineering technical course that only covers the essentials when ranked with an undergraduate engineering degree. It aims to provide students/Trainees with industry or job related engineering knowledge, scientific skills, computing and analysis, mathematical techniques, a sound knowledge of English to communicate in the field and ability to apply problem-solving techniques.For more details https://www.skooltek.in/technical-diploma-courses/
Its duration is minimum 3 years. Many countries in the world recognize it as equivalent to pre-engineering or bridging course when considered for continuing studies in engineering related bachelors or associate degree programs.
After successful completion of diploma in engineering course, students can either continue further engineering studies in undergraduate level or get employment as junior engineers, sub engineers, associate engineers, technicians, technologists, supervisors, superintendents, foremen, machinist, workshop technicians, draftsman, station technicians (energy, thermal, aeronautical), automobile technicians, maintenance and service technicians, equipment mechanics and technicians, CAD/CAM programmer, agricultural overseers, instrument technicians, junior instructors, manufacturing, tool and die designers, electricians…etc.
In some countries, one can apply for this diploma after completion of 10th grade (Secondary School Certificate/SSLC) and some countries provided lateral entry for plus two science and two year ITI passed students, they can directly apply to the second year/Third semester of polytechnic diploma courses.For more details https://www.skooltek.in/technical-diploma-courses/