That's great! Honestly, I've been watching some of the Drishti Mock Interviews for the IAS exams and I feel like this is quite similar compared to those. Having a vast knowledge of various fields like current affairs, finance, marketing and even having a liking for economics and business is very important. Sometimes you get random topics for your extempore like favourite food or sometimes you get a few complex topics like marketing techniques for elections. Whatever topic you get, if you don't have information about it, just be honest and tell them you don't know but don't go through too many topics or else the interviewer might get annoyed. If you don't know a topic, tell them as much as you know. Being honest with them is key and be concise with your matter

As per FMC guidelines, FMS provides 100% placements which means that they ensure that every student studying there will get a job from their campus. Plus they also say that the students will get the job of their choice in the field of their interest. The final placements at FMS are a two-step process. I guess it will have two rounds. The lateral Placements program which generally starts in December is an endeavor to adequately compensate students with relevant prior MBA experience.

To calculate the scores you need in interviews, SOP discussion, and extempore, as well as to estimate the likelihood of your composite score decreasing, let's break down the information provided:

1. **CAT Scores**:

- Overall CAT Percentile: 99.69%

- Scaled Scores: VARC - 58.14, DILR - 19.61, QA - 11.61

2. **Academic Scores**:

- 10th/12th/Graduation/Post-graduation: 9/9/8 GEF

3. **Composite Scores**:

- Call Composite Score (based solely on CAT score): 48.30

- Selection Composite Score (including CAT score, academic scores, and male candidate factor): 49.15

Given this information, let's analyze:

- Your overall CAT percentile is already very high (99.69%), indicating strong performance compared to other candidates.

- Your scaled scores in DILR and QA are relatively low compared to VARC. You may need to focus on improving your performance in these sections.

- Your academic scores are quite good, with a 9/9/8 GEF, which should positively contribute to your selection composite score.

- The selection composite score includes CAT score (24.15), academic scores (20), and male candidate factor (5). Since your CAT score is already high and academic scores are good, further improvement may not be necessary in these areas.

Considering the above points, to estimate the scores you need in interviews, SOP discussion, and extempore:

- Interviews, SOP discussion, and extempore are subjective assessments and do not have predefined score targets. However, your strong CAT percentile and academic scores should put you in a favorable position.

- Focus on presenting yourself confidently, articulating your thoughts clearly, and showcasing your achievements and aspirations effectively during interviews and SOP discussion.

- For extempore, practice speaking on a variety of topics to improve your communication skills and ability to think on your feet.

Regarding the likelihood of your composite score decreasing:

- Your selection composite score (49.15) is already higher than your call composite score (48.30), indicating that additional factors such as academic scores and male candidate factor have positively influenced your overall score.

- Unless there are significant changes or discrepancies in your application details, it is unlikely for your composite score to decrease.

Overall, continue to focus on presenting yourself effectively during interviews and discussions, and leverage your strong academic and CAT scores to strengthen your candidacy for selection.