Introduction:
The NDA (National Defence Academy) exam is a highly competitive examination that requires thorough preparation. To maximize your chances of success, it is essential to prioritize your preparation based on the weightage of marks for different subjects. This will help you allocate your time and efforts efficiently.

1. Understand the Exam Pattern:
Before prioritizing your preparation, it is crucial to understand the exam pattern of the NDA exam. It consists of two sections: Mathematics and General Ability Test (GAT). The Mathematics section carries 300 marks, while the GAT section carries 600 marks.

2. Analyze the Weightage of Marks:
Next, analyze the weightage of marks for different subjects within each section. This will help you identify the subjects that carry more marks and require greater emphasis during preparation. Here is a breakdown of the weightage of marks for the NDA exam:

Mathematics:
- Algebra: Approximately 40-50 marks
- Trigonometry: Approximately 30-40 marks
- Geometry: Approximately 40-50 marks
- Calculus: Approximately 30-40 marks

General Ability Test (GAT):
- English: Approximately 200 marks
- Physics: Approximately 100-150 marks
- Chemistry: Approximately 60-80 marks
- General Science: Approximately 40-60 marks
- History, Freedom Movement, etc.: Approximately 80-100 marks
- Geography: Approximately 80-100 marks
- Current Events: Approximately 40-60 marks

3. Prioritize Based on Weightage:
Based on the weightage of marks, prioritize your preparation in the following manner:

Mathematics:
- Start with topics that carry higher weightage, such as Algebra and Geometry.
- Spend more time practicing problems from these topics.
- Move on to Trigonometry and Calculus, giving them adequate attention.

General Ability Test (GAT):
- Begin with English, as it carries the highest weightage.
- Focus on improving your vocabulary, grammar, and comprehension skills.
- Allocate ample time for Physics, Chemistry, and General Science, as they collectively carry a significant portion of marks.
- Devote sufficient time to History, Geography, and Current Events, ensuring comprehensive coverage of important topics.

4. Create a Study Schedule:
Once you have prioritized your preparation based on the weightage of marks, create a study schedule that reflects your priorities. Allocate more time to subjects with higher weightage and distribute your study hours evenly across different topics within each subject.

Conclusion:
Prioritizing your preparation based on the weightage of marks in different subjects is crucial for success in the NDA exam. By understanding the exam pattern, analyzing the weightage of marks, and creating a study schedule accordingly, you can optimize your preparation and increase your chances of securing a good score. Remember to stay consistent, practice regularly, and seek guidance from reliable study materials and resources like EduRev.