Dear Student,

There are many resources available online by which you can prepare for your NDA exam.But alongwith that resources you have to keep in mind these steps given below.

• Solve at leat 50 previous year, sample paper, mock test papers.
• The first thing you must know is the complete syllabus topics .

You can try Unacademy app for this.This app has given better results and also teachers on this app ara very nice with a high degree of excellency.They have a lot of experience, and their way of teaching is also very nice. You can try one another app named NDA by EduRev .This is also very good app.Both the apps are available freely on play store. So check them.

Hope this helps.