Hello,

The age limit to join NDA 2022 is that the candidate must be between 16.5 to 19.5 years old, candidates those were born before 2nd July 2005, and after 1st July 2005 are eligible for NDA.
The educational qualification required to join NDA for Army wings is that the candidate must have passed their 10+2, to join Air Force is that the candidate must have passed 10+2, for cadet entry scheme of Indian Navel academy the candidate must have passed their 10+2 with physics and mathematics as compulsory subjects.

For more relevant information, you may visit here:
https://competition.careers360.com/articles/nda


Hope this helps, all the best.