Hello,

If you're enquiring for preparation tips for written test of NDA, then firstly be acquainted with the exam pattern, and syllabus, the entrance test has two papers, one is mathematics carrying 120 questions for 300 marks, and second is general ability test which has two parts, first one is english and second one is general knowledge comprising of history, geography, physics, chemistry, general science etc carrying 150 questions for 600 marks, each paper is conducted for a duration of two hours and thirty minutes, check out the detailed information at https://competition.careers360.com/articles/nda-syllabus

Next comes the importance of study materials which form the basis of success in any exam, you can refer NCERTs in case you want to build your base strong in mathematics, other than this you can refer RK Agarwal's Quantitative Aptitude for Competitive exams/Mathematics for NDA and NA, for English refer Wren and Martin for grammar, Word Power Made Easy for vocabulary building, SP Bakshi's Objective General English , for current affairs you can refer Pratiyogita Darpan, for covering portion of physics, chemistry refer NCERT books of class 11th and 12th, for covering general science, history, geography refer Lucent's GK,

Since, you're now well acquainted with the exam pattern, syllabus, study materials make a time table and accordingly schedule number of hours to each sections,

Go through previous year papers at https://competition.careers360.com/articles/nda-question-papers to evaluate your preparation, know about scope for improvement, and building confidence through regular practice.

Practice yoga, meditation or any other exercise to keep yourself healthy as the entrance test is conducted over three stages hence it's of utmost importance to be fit and healthy.