To join National Defence Academy a candidate must appear in the entrance exam conducted by Union Public Service Commission. 

You can check below eligibility criteria 

- The upper limit is 19.5 years for appearing in NDA

To know in detail you can refer below link

NDA

You can follow below

Minimum Age should be 16.5 years  and Maximum Age should be 19.5 years. Also, the date of birth will be calculated as it is entered in the Matriculation or Secondary School Leaving Certificate or in a certificate recognised by an Indian University as equivalent to Matriculation.

To check the complete

To give NDA exam, minimum age should be 16.5 and maximum one is 19.5 and 10+2 appearing and passed students are eligible and so if you meet this criteria then yes, you can apply for NDA exam.

To check the complete eligibility, you can go through the below article -

Dear Student,

NDA examination consist of two exams, one is for Mathematics and other one is for General Ability Test. To clear the for the next round in NDA i.e; SSB you have to clear both the exams seperately with score of atleast 30% of the total marks in each

Mathematics question paper of NDA examination will comprise various sections including Algebra, Matrices, Determinants, Trigonometry, Analytical Geometry of two and three dimensions, Differntial Calculus, Integral Calculus, Vector Algebra, Statitics and Probability.
The General Ability Test paper will have questions from English, General Knowledge sections including Physics, Chemistry, General Science, Social

If you want to join Indian Air Force then you can give NDA exam conducted by UPSC as NDA 2017 was conducted for recruiting around 800 officers’ vacancies Indian Army, Navy, Air Force and both NDA I & II had approximately 400 vacancies each. Also, the notification for NDA 1

Dear aspirant!

Hope you are doing well ! NDA exam is conducted in india twice a year nda stands for national defence academy which is situated in PUNE,india you can prepare for it from your class 11 but can give exam in class 12 and after it.As per your question

• Paper I (Mathematics): Trigonometry, Algebra, Integral Calculus, Differential Calculus, Analytical Geometry, Probability, Statistics, Matrices and Vector Algebra.

Even if you are working hard but without any strategy, your chances of getting success are rare. Learn this lesson and study with a strategy. When you are only left with 2 months

You can apply for Indian Air Force.

You have to appear for NDA exam in order to take admission

To check the complete eligibility criteria of the exam you can refer below link

NDA Eligibility Criteria

Good Luck!!