For the candidates who aspire to join the defence forces, NCC ' C ' certificate is a golden opportunity for them to go to SSB directly. These candidates are exempted from giving the common entrance exam and are called directly for SSB.

Basically the NCC provides a basic experience to its cadets which is required in Army. So as the NCC's have basic understanding of the discipline , they are exempted of the exam.

For analogy , you can say that the NCC is like a diploma before a degree course. The uses of NCC certificate is like that in army.

Have a great day!