1. Identify Weak Areas:
- Start by identifying the specific subjects or topics that you struggle with the most in the NDA exam.
- Analyze your previous test scores and take note of the areas where you have consistently performed poorly.

2. Create a Study Plan:
- Develop a study plan that focuses on your weaker subjects.
- Allocate specific time slots for each subject and create a schedule that allows for regular and consistent practice.
- Divide your study time into smaller, manageable chunks to avoid burnout and improve focus.

3. Seek Guidance:
- Seek guidance from teachers, mentors, or fellow students who excel in the subjects you find challenging.
- Discuss your difficulties and ask for tips, strategies, and study materials that can aid your learning.
- If possible, consider enrolling in coaching classes or hiring a tutor for personalized guidance.

4. Break Down Complex Concepts:
- Break down complex concepts into smaller, more manageable parts.
- Understand the fundamentals before moving on to more advanced topics.
- Use visual aids, diagrams, or flowcharts to simplify and visualize complex information.

5. Practice Regularly:
- Regular practice is key to improving your performance in weaker subjects.
- Solve previous years' question papers and sample papers to understand the exam pattern and gain familiarity with the types of questions asked.
- Set aside time for daily practice and attempt mock tests to assess your progress.

6. Utilize Online Resources:
- Take advantage of online resources such as EduRev, which offers a wide range of study materials, notes, and practice questions specifically tailored for the NDA exam.
- Use online forums or discussion groups to interact with other aspirants and share study tips and resources.

7. Focus on Time Management:
- Time management is crucial during the NDA exam.
- Practice solving questions within the given time limit to improve your speed and accuracy.
- Use time-saving techniques such as skipping difficult questions and revisiting them later, or utilizing shortcuts and formulas to solve mathematical problems more efficiently.

8. Stay Motivated:
- Stay motivated and maintain a positive mindset throughout your preparation.
- Celebrate small victories and milestones to keep yourself motivated.
- Surround yourself with supportive friends and family who encourage and inspire you to perform better.

Remember, improving in weaker subjects takes time and effort. Consistency, dedication, and a well-structured study plan are key to achieving success in the NDA exam.