hi ,these may help.

• A student desirous of being enrolled in the Senior Division shall apply to the Officer Commanding of the nearest NCC Unit; while a student desirous of being enrolled in the Junior Division should apply to the Headmaster/Principal of the school in the prescribed form.
• There is provision for students desirous of enrolling in NCC even from educational institutions that are not enlisted as NCC sub-units. In this provision of ‘Open Category’, the student needs to approach the Commanding Officer of the nearest NCC Unit for further guidance.