Introduction:
Analyzing mock test questions is an essential part of the preparation process for any competitive exam, including UPSC. However, the timing of this analysis can vary for each individual. In this response, we will discuss the pros and cons of analyzing each mock test question immediately after attempting it versus saving the analysis for a later session.

Immediate Analysis:
Analyzing each mock test question immediately after attempting it can have several benefits:

1. Immediate Feedback: Analyzing the questions immediately provides instant feedback on your performance. This allows you to identify and rectify any mistakes or misconceptions while the questions are still fresh in your mind.

2. Retention of Knowledge: Analyzing the questions immediately helps in better retention of knowledge. When you analyze the questions right after attempting them, the concepts and explanations are still fresh in your mind, making it easier to remember and understand.

3. Efficient Time Management: Analyzing the questions immediately helps in efficient time management. By identifying the areas where you made mistakes, you can focus your future study sessions on those specific topics, saving time and maximizing your learning.

Later Session Analysis:
Saving the analysis for a later session also has its advantages:

1. Time for Reflection: Analyzing the questions in a later session allows for a more reflective approach. It gives you time to think about the questions, review your answers, and analyze them in a more calm and focused manner.

2. Identification of Patterns: Analyzing multiple mock test questions together in a later session allows you to identify patterns in your mistakes. You may notice recurring themes or areas of weakness that need more attention. This can help you develop a targeted study plan for improvement.

3. Reduced Pressure: Analyzing mock test questions immediately after attempting them can sometimes create additional pressure and stress. Saving the analysis for a later session can help alleviate this pressure and allow for a more relaxed and comprehensive analysis.

Conclusion:
In conclusion, whether to analyze each mock test question immediately or save it for a later session depends on personal preference and study style. Both approaches have their merits, and it is important to find the method that works best for you. Some individuals may benefit from immediate analysis for instant feedback and efficient time management, while others may prefer a later session analysis for reflection and pattern identification. Ultimately, the key is to consistently analyze your mock test questions to identify areas of improvement and enhance your overall performance.