Having gone through the process recently, I am aware of how increasingly competitive it is becoming to land a position at one of the coveted consulting firms.
I have gone through over 50 case interviews and prepared details notes during the process, including mistakes I made and useful tips collated from various resources, including real interviews with consulting firms.
While we cannot refute the importance of natural aptitude, I strongly believe that through practice, one can significantly improve their interviewing skills.
I usually prefer to conduct a mock case interview to understand where you're at, and we can accordingly tailor the training program. Unfortunately, I often see candidates practice 50+ mock interviews without correcting their fundamental / easy-to-correct bad habits, and I will ensure to bring these to your mind early on to ensure an efficient yet effective case practice.
In addition, having been in the Middle East region for over a year now, I can brief you about the consulting industry in the region and answer any specific questions you might have.