Hi Jyothi. To the best of my knowledge, there is no official syllabus for CAT. Theoretically, they can ask anything that can be argued to fall under the terms "Quantitative Ability", "Verbal Ability", "Data Interpretation" or "Logical Reasoning". It is impossible (as well as unnecessary) to be 100% sure of covering all bases as far as the knowledge requirement of the exam goes. Your aim as an aspirant, is to cover as much as possible from topics that have been asked in the recent years. Any service provider, whether individual tutor or coaching center, would also just be teaching you concepts from their best bet of what the next year's exam would test. More importantly - and this is the crucial aspect for succeeding in this exam - you have to develop the skills that will help you cope better than the competition if something different or unfamiliar appears in your exam. These skills can broadly be classified in four categories: 1) Comprehension speed - reading a question fast, and having the comprehension skill to understand it in one reading, and the concentration levels to retain the entire information without re-reading till you finish solving it. 2) Calculation Speed - very crucial. The non-necessity of calculation speed because of the introduction of onscreen calculator is the biggest myth. If you ask toppers, they will unanimously agree that the on screen calculator will slow you down. Avoid it completely in Quant and use it sparingly in DI for best results. 3) Deductive reasoning - formal top down reasoning. and 4) Inductive reasoning - which is just a fancy way of saying "pattern recognition ability". The people who conduct CAT are actually testing for these "skills". The skills are the end objective. The syllabus is only a means to an end. So make sure you work on these skills side by side while you cover your topics. At the end of the day, it is important to remember that CAT is an aptitude test and it is a competitive exam. The term "aptitude" means that you can be tested on anything which shows your problem solving ability, and the term "competitive" means you only need to show that you will respond to a situation, whether familiar or unfamiliar, better than the competition. This is not like your school or college exams where you fail if you don't get 40%. Questions about syllabus and difficulty are moot. If the exam asks "out of syllabus" or is "too tough" (or "too easy", for that matter), the same is applicable to all the applicants. Ideally, it shouldn't affect your percentile (which is just another way of expressing your rank). Hope this helps. Feel free to reach out for any further clarification :)