Dear Sing ,

UPSC has prescribed the syllabus of NDA 2020 for all aspirants. NDA exam syllabus contains the topics and sub-topics under Mathematics and General Ability Test. The standard of questions in the exam was of matriculation and 10+2 level. English ,matreics ,General Knowledge, Physics, Chemistry, General Science, General Science, History, Freedom Movement ,Differential Calculus, trigonometry, static's and probability ,vector algebra etc...

Apart from that i have shared a link with you where you will get all the information about this exam .

https://competition.careers360.com/articles/nda#NDA-2020-Syllabus

Hope it will helpful

Thanks