Hello there,

If your school do not provide NCC facility then you can contact commanding Officer of the nearest NCC unit for further Guidance.

OR after completing your 18.5 years of age you can join NCC senior division in your college or if your college also not provide then you can join open cadet in NCC. Open Cadet in NCC is open to all regular students of school and college  on a voluntary basis.

AND also, All the Regular students of School and college can join open cadet in NCC an a voluntary basis.

There students have not any liability  for active military service.

For more Information Open Cadet in NCC click on the given link :-

https://www.careers360.com/question-how-to-join-ncc-without-college

https://www.careers360.com/keywords/ncc-syllabus

Hope this will help

Thank you !