Hii!
NIOS is a recognised Board of education and the passouts from here are eligible to apply for NDA entrance exam.
So, you can apply for the exam without any problem.
Eligibility criteria states that the Candidate should be between 17 to 19 years of age and should have passed class 12th with PCM/ B Subject ombinations with minimum 50% marks from a recognised Board of education. For more details refer the following link-

https://competition.careers360.com/articles/nda-eligibility-criteria/amp

Hope this helps.
Good luck!

National Defence Academy & Naval Academy Examination

Application | Eligibility | Admit Card | Preparation Tips | Result | Answer Key | Cutoff

Get Updates Brochure