Thousands of students work extremely hard for CAT every year. They study for months and months. However, many of them do not receive the percentile they desire. Why is this so?
The answer is simple: They do the same thing over and over without realizing it. These errors slowly erode their score. In this blog, we will examine 7 common mistakes that people make in preparing for CAT and how to avoid them. This blog will help you a lot if you are preparing for CAT 2026.
Mistake 1: Using the Wrong Books
Many students choose any book they can find. This is a big mistake. Your study is easy and clear with the right CAT preparation books 2026. Do not purchase 5 or 6 books. Use 2-3 good ones and complete them well.
Mistake 2: Not Taking CAT Mock Test Papers
This is one of the most common errors that students make. They learn theory for months but have no opportunity to practice under exam conditions. The best preparation for CAT is to take CAT mock test papers.
Taking a mock test teaches you how to use your time. You also find out which topics are weak for you. Try to take at least 2 mock tests every week after September 2025. Take time to review your errors after each test. The review is more important than the test itself.
Tip: Take free mock tests from IIMs or paid ones such as TIME, Career Launcher or iQuanta. These are the most similar to the actual CAT paper.
Read More - 6 Months Left for CAT 2026: Can You Still Score 99 Percentile?
Mistake 3: Ignoring CAT Previous Year Question Papers
Students believe that old papers are not useful. This is absolutely incorrect. CAT previous year question papers reveal you the actual sample of the examination. They indicate the most common and the most difficult topics.
Answer questions in papers from the last 5 years. It will be evident that some questions are repeated from year to year. Once you understand the pattern, you don't spend time on irrelevant matters.
Action Step: Solve CAT papers from 2019 to 2024 with a time limit. Record the incorrect answers and review them every week.
Mistake 4: Having No CAT Percentile Strategy
The majority of students attempt all questions. This is a major blow to their rating. CAT is a negative marking test, meaning that incorrect answers will result in loss of marks.
A good CAT percentile strategy is one that involves knowing which questions to attempt and which to skip. It is better to get 50 questions right than 80 questions wrong. Focus on accuracy first, then speed. Various sections require various strategies.
|
Section |
Ideal Attempts (out of 24) |
Target Accuracy |
|
Verbal Ability & RC |
16–18 |
80%+ |
|
Data Interpretation & LR |
14–16 |
85%+ |
|
Quantitative Aptitude |
16–18 |
80%+ |
Develop your strategy during the first mock test. Everyone is unique, so do what is best for you.
Mistake 5: Poor Time Management During Study
There are students who study 10 hours a day and still not improving.There are students who study 10 hours a day and still not improving. It is not the amount of time, it is the quality of the time.
Avoid studying in a random manner on the same day all sections. Make a weekly timetable. Assign predetermined time periods to each section. For instance, you can take Quantitative Aptitude on Monday and Wednesday, Verbal Ability on Tuesday and Thursday, and Data Interpretation on Friday. Continue with mock tests on Saturday and full revision on Sunday.
Remember: Quality of study is more important than quantity. 5 focused hours are better than 10 distracted hours.
Mistake 6: Studying Without a Clear Plan
Students who begin preparation for CAT without a plan waste months. They jump from topic to topic and do not complete tasks well.
Make a 6-month plan starting from your first day of preparation. Divide the syllabus into monthly targets. In the first 2 months, cover all basic concepts. Over the next 2 months, practice challenging problems. Last 2 months, concentrate on mock tests and revision. This is a structure that will help you stay on track each week.
Mistake 7: Not Revising Regularly
A lot of students study a subject once and then forget it. They forget all that after a few weeks. This is a very common mistake in CAT Preparation.
Allow 30 minutes per day for revision. Relive the formulas you have learned, the tips for speedy solving of questions, and the errors you committed in mock tests. Frequent revision helps maintain brain sharpness and confidence in the exam.
Conclusion
CAT 2026 is not easy but not impossible. The majority of students who are not receiving a good percentile are not less intelligent, they simply have made avoidable mistakes. So you now know what those errors are.
Utilize the correct CAT preparation books 2026. Solve CAT Mock Test Papers on regular basis. Refer to the previous year question papers of Study CAT to get an idea of the pattern. Choose a good CAT quantitative aptitude book and study it. Develop a good CAT percentile strategy and follow it. Revise every day.
Repeat this regularly and your percentile will go up. Begin now, don't wait.
FAQ
Practice at least 30-40 full-length mock tests prior to the test. Start with one per week and increase to two per week in the last 2 months.
Previous year papers are crucial but not the only thing. They are best used in conjunction with good books and mock tests.
Generally, 99 percentile and above is required for IIM Ahmedabad, Bangalore and Calcutta. For other good IIMs, 95-98 percentile is a good score.
The ideal time to begin is 6 months prior to the exam, which is approximately May or June 2026. But, the earlier you begin, the more time you will have to practice and revise.




