Army:
- The Army exam is conducted by the Union Public Service Commission (UPSC) twice a year.
- The written exam consists of two papers, namely Mathematics and General Ability Test (GAT).
- Each paper is of 2.5 hours duration and carries a maximum of 300 marks.
- The Mathematics paper carries 120 marks, while the GAT paper carries 150 marks.
- The Mathematics paper focuses on topics like algebra, trigonometry, geometry, calculus, etc.
- The GAT paper tests the candidate's knowledge in English, general knowledge, physics, chemistry, history, geography, current affairs, etc.
- The marks obtained in both papers are considered for the final selection process.

Navy:
- The Navy exam is also conducted by the UPSC.
- The written exam consists of two papers, namely Mathematics and General Ability Test (GAT).
- Each paper is of 2.5 hours duration and carries a maximum of 300 marks.
- The Mathematics paper carries 120 marks, while the GAT paper carries 150 marks.
- The Mathematics paper focuses on topics like algebra, trigonometry, geometry, calculus, etc.
- The GAT paper tests the candidate's knowledge in English, general knowledge, physics, chemistry, history, geography, current affairs, etc.
- The marks obtained in both papers are considered for the final selection process.

Air Force:
- The Air Force exam is also conducted by the UPSC.
- The written exam consists of two papers, namely Mathematics and General Ability Test (GAT).
- Each paper is of 2.5 hours duration and carries a maximum of 300 marks.
- The Mathematics paper carries 120 marks, while the GAT paper carries 150 marks.
- The Mathematics paper focuses on topics like algebra, trigonometry, geometry, calculus, etc.
- The GAT paper tests the candidate's knowledge in English, general knowledge, physics, chemistry, history, geography, current affairs, etc.
- The marks obtained in both papers are considered for the final selection process.

Summary:
- The weightage of marks for different papers in the Army, Navy, and Air Force branches is the same.
- The written exam consists of two papers, Mathematics and General Ability Test (GAT).
- Mathematics carries 120 marks, while GAT carries 150 marks.
- The topics covered in the mathematics paper include algebra, trigonometry, geometry, calculus, etc.
- The GAT paper tests the candidate's knowledge in English, general knowledge, physics, chemistry, history, geography, current affairs, etc.
- The marks obtained in both papers are considered for the final selection process.