Hey there

If you want to join National cadet Corps then you have to apply to the commanding officer of the nearest National cadet Corps unit. The candidate need to fill up form there and sign in his presence. The candidate must be careful that the application is in proper form. After this the commanding officer make further requirements. After these requirements medical examination is done of the candidate.

For more: https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/question-what-is-ncc-special-entry-scheme-in-indian-army-and-what-are-its-eligibility-criteria-and-how-to-join/amp&ved=2ahUKEwi3heqk_-_zAhWFyjgGHY8mCbgQFnoECAkQAQ&usg=AOvVaw2z4D7TTr4jAd7HRCC23nHH&ampcf=1