Hey,
As the name suggests, a ‘polytechnic’ has traditionally been an institution that offers education in many arts and sciences at the diploma level. Since most of them offer education to improve the practical and technical skills of the students, they have a clear vocational orientation. In India, polytechnics are set up and run by the State governments or are private institutions with varying degrees of government aid, offering diploma and certificate courses that can be done after Class 10. Other courses like fashion design, textile design, mass communication, interior design and hotel management can have a duration of one to four years, depending on course structure.
Here is all you need to know:
https://www.careers360.com/news/7314-polytechnics-courses-in-India
