Poly diploma course are the best option for after completing the SSLC or 10^th level education and its duration is 3 year. Lateral entry in Poly diploma means the admission will be directly in the 2 year or 3^rd semester of the Poly diploma course you have chosen. You do not have to take admission in 1^st year or 1^st semester you will get direct admission to 2^nd year or 3^rd semester of any Poly diploma course.The best job oriented Ploy diploma courses are:

Diploma in Mechanical
Diploma in Civil
Diploma in Automobile
Diploma in Electrical
Diploma in Electronics
Diploma in Marine Mechanic
Diploma in Industrial Instrumentation

The Poly diploma (Lateral Entry) is a technical qualification below the undergraduate level which aims to provide students with the basic, hands-on knowledge of engineering, scientific, computing, mathematical techniques, English communication and ability to apply the basic problem solving techniques. Its duration is 2 years or 4 semesters. The qualification is plus two in science stream with chemistry, physics and mathematics or ITI (NCVT) 2 year in any trade. After successful completion of  Poly diploma course, students can either continue further Engineering studies in graduate level (Btech /BE) in India and Abroad or get employed as supervisors, foremen, workshop technicians, draughtsman, service station managers, auto engineers, agricultural overseers, farm managers, junior instructors, workshop superintendents etc.for more:https://www.skooltek.in/technical-courses/