How Marks are Calculated in the NDA Exam

The National Defence Academy (NDA) exam is conducted by the Union Public Service Commission (UPSC) to select candidates for admission into the Indian Army, Navy, and Air Force. The marking scheme for the NDA exam is designed to evaluate the knowledge and skills of candidates across various subjects. Here is a detailed explanation of how marks are calculated in the NDA exam:

Written Examination:
1. Mathematics:
- The Mathematics paper consists of 120 questions, each carrying 2.5 marks.
- For every correct answer, candidates are awarded 2.5 marks.
- There is negative marking for incorrect answers, with 0.83 marks deducted for each wrong answer.
- The total marks for the Mathematics paper are calculated by multiplying the number of correct answers by 2.5 and subtracting the number of incorrect answers multiplied by 0.83.

2. General Ability Test:
- The General Ability Test comprises two sections: English and General Knowledge.
- The English section consists of 50 questions, with each question carrying 4 marks.
- For every correct answer in the English section, candidates are awarded 4 marks.
- There is a negative marking of 1.33 marks for each wrong answer in the English section.
- The General Knowledge section consists of 100 questions, with each question carrying 4 marks.
- Similar to the English section, candidates receive 4 marks for each correct answer in the General Knowledge section.
- For every wrong answer in the General Knowledge section, 1.33 marks are deducted.
- The total marks for the General Ability Test are calculated by adding the marks obtained in the English and General Knowledge sections separately.

SSB Interview:
- After qualifying the written examination, candidates are called for the SSB (Services Selection Board) interview.
- The SSB interview is conducted in multiple stages and assesses the candidate's personality, intelligence, and aptitude.
- The SSB interview carries a maximum of 900 marks, which include the evaluation of various tasks such as psychological tests, group discussions, personal interviews, and physical fitness tests.
- The final selection is based on the candidate's performance in the written examination and the SSB interview.

Final Merit List:
- The final merit list is prepared based on the total marks obtained in the written examination and the SSB interview.
- The marks obtained in the written examination are multiplied by a factor of 4/5 to bring them on par with the marks obtained in the SSB interview.
- The final merit list is prepared by adding the marks obtained in the written examination and the SSB interview.

Conclusion:
In conclusion, the marking scheme for the NDA exam involves assigning marks for correct answers and deducting marks for incorrect answers. The written examination carries a specific marking scheme for each subject, while the SSB interview evaluates the candidate's overall performance. The final merit list is prepared by considering the marks obtained in both the written examination and the SSB interview, determining the selection of candidates for admission into the NDA.