Dear Aspirant,

NDA is an exam consists of mainly three subjects, English, GK/current affairs, Mathematics.

You have to have good hold on these three subjects to get a good marks in NDA exam.

The first thing is mathematics, do take your mathematics syllabus seriously and study regularly for at least 2 hours mathematics. It will definitely help you.

The next thing is english like grammar, error finding, etc. You should practice that from books like norman lewis, etc.

For GK, you can rely on newspapers and GK books from arihant. You should also solve previous year question papers.

Hope this helps. Thank you.

Refer to following links for more details:

https://competition.careers360.com/articles/how-to-prepare-for-nda

https://competition.careers360.com/articles/nda-syllabus