One of the best polytechnic diploma after 10th and required eligibility criteria is 10th passed out and recognised board, minimum 35% marks in 10th class. Best polytechnic colleges in up provides a benefit of job opportunity in various sector public sector, private sector, self employment. diploma in engineering total three years duration course and student age criteria 14 years and polytechnic admission process direct in most of the private colleges and government college giving the entrance exam.