Marking Scheme for NDA Exam's History Section:

The history section of the NDA exam is designed to test the candidate's knowledge and understanding of various historical events, movements, and personalities. The marking scheme for this section is as follows:

1. Objective Questions:
- Each objective question carries 4 marks.
- For every correct answer, 4 marks will be awarded.
- For every incorrect answer, 1 mark will be deducted as negative marking.

2. Descriptive Questions:
- Descriptive questions are usually asked in the form of short answer questions or essay-type questions.
- The marks for descriptive questions may vary depending on the complexity of the question.
- Generally, descriptive questions carry 10-15 marks each.
- The answers to these questions should be written in a concise and well-structured manner.

Marking Scheme for NDA Exam's Geography Section:

The geography section of the NDA exam aims to evaluate the candidate's knowledge of geographical concepts, physical and political geography, and map reading skills. The marking scheme for this section is as follows:

1. Objective Questions:
- Each objective question carries 4 marks.
- For every correct answer, 4 marks will be awarded.
- For every incorrect answer, 1 mark will be deducted as negative marking.

2. Descriptive Questions:
- Descriptive questions in the geography section may ask the candidates to analyze and interpret maps, diagrams, or geographical data.
- The marks for descriptive questions may vary depending on the complexity of the question.
- Generally, descriptive questions carry 10-15 marks each.
- The answers to these questions should be written in a clear and concise manner, providing relevant information and analysis.

Marking Scheme for NDA Exam's Current Affairs Section:

The current affairs section of the NDA exam evaluates the candidate's awareness of national and international events, government policies, scientific advancements, sports, awards, and other important current affairs topics. The marking scheme for this section is as follows:

1. Objective Questions:
- Each objective question carries 4 marks.
- For every correct answer, 4 marks will be awarded.
- For every incorrect answer, 1 mark will be deducted as negative marking.

2. Descriptive Questions:
- Descriptive questions in the current affairs section may ask the candidates to provide their opinion or analysis on a current affairs topic.
- The marks for descriptive questions may vary depending on the complexity of the question.
- Generally, descriptive questions carry 10-15 marks each.
- The answers to these questions should be written in a well-structured manner, providing relevant information and supporting arguments.

Remember to thoroughly study the syllabus and practice previous year question papers to get familiar with the exam pattern and marking scheme.