Reviewed by Kaushik Kapoor
Co-founder and Director of Erudite, a premium MBA entrance coaching institute headquartered in Kolkata. An alumnus of XLRI Jamshedpur and St. Xavier's College, Kolkata, with over 25 years of experience in mentoring students, MBA entrance preparation, test-prep strategy and academic training.
A strong CAT score depends on more than learning concepts. Mock-test analysis, question selection, accuracy, sectional balance and the ability to make decisions under time pressure can all influence your final performance.
That is why some candidates put in hundreds of hours of preparation without seeing the same improvement in their mock scores. The problem is often not a lack of effort, but the way that effort is being used.
The most common CAT preparation mistakes include delaying mock tests, analysing mocks superficially, neglecting weaker sections, spending too long on difficult questions, ignoring regular reading practice, chasing attempts instead of accuracy, revising inconsistently and switching between too many resources.
Here is how to identify and correct these mistakes before they become habits.
Avoid these eight mistakes during your CAT preparation:
One of the biggest preparation errors is waiting until the entire syllabus feels “complete” before attempting full-length mocks.
A mock test is not only a scorecard. It helps you understand how you behave under time pressure: which questions you select, where you lose time, when your accuracy falls and whether your strategy changes when a section becomes difficult.
Starting mocks reasonably early also gives you enough time to experiment. You can test different approaches to question selection and pacing before settling on a strategy that consistently works for you.
An equally serious mistake is taking mocks without analysing them properly. Looking only at the score or percentile tells you what happened, but not why it happened.
After each mock, review:
Maintain an error log and assign every significant mistake a cause such as concept gap, careless error, time-management problem, misreading or poor selection.
The purpose of mock analysis is not simply to increase the number of mocks you take. It is to make sure the same avoidable mistake becomes less likely in the next one.
It is natural to spend more time on subjects you enjoy.
Someone comfortable with mathematics may continue solving increasingly difficult Quantitative Ability questions while postponing VARC practice. A strong reader may do the reverse and avoid systematic work on DILR or QA.
This creates an unbalanced preparation profile.
Many IIMs consider sectional CAT performance in addition to overall performance, although the minimum requirements differ by institute, category and admission cycle. Candidates should therefore check the latest admission criteria of the B-schools they are targeting rather than assuming that a high overall percentile will compensate for every weak section.
Divide preparation time according to need, not preference.
Review your recent sectional and mock-test data and ask:
Continue maintaining your strengths, but give weaker areas enough structured practice to remove obvious scoring bottlenecks.
CAT does not reward you for solving the most difficult question in a section.
A common mistake is becoming emotionally committed to a problem simply because it comes from a familiar topic. After investing two or three minutes, candidates may keep going because abandoning the question feels like wasting the time already spent.
That decision can become more expensive than the original mistake.
Time spent wrestling with one difficult QA problem or an unsuitable DILR set may prevent you from even seeing easier questions later in the section.
Practise deciding when not to solve.
During mocks and sectional tests:
A two-pass approach can work well for many candidates: secure the clearer opportunities first, then use the remaining time for moderate questions.
Reading Comprehension is difficult to improve through last-minute memorisation.
CAT RC requires you to process unfamiliar arguments, identify relationships between ideas, understand tone and distinguish what the author states from what can reasonably be inferred.
Candidates who read only familiar or comfortable material may struggle when a passage is abstract, dense or outside their preferred subject area.
Build regular exposure to serious writing from different domains such as:
Do not turn reading practice into passive page consumption.
After an article or passage, ask yourself:
Combine this habit with timed CAT-style RC practice. Reading widely improves familiarity with complex material; solving questions teaches you how CAT tests that material.
A higher attempt count does not automatically mean a higher CAT score.
The objective is to maximise your score, not to maximise the number displayed under “attempted.”
This distinction is particularly important because the marking rules depend on question type. Under the current CAT pattern, an incorrect MCQ carries a negative mark, whereas TITA/non-MCQ questions do not carry the same negative penalty. Candidates should still verify the official instructions for their examination year because CAT details can change between cycles.
Blind guessing on MCQs can therefore turn an apparently aggressive strategy into a lower raw score.
Shortcut-based preparation creates a related problem. Tricks can save time when their conditions are understood, but memorising shortcuts without understanding the underlying concept makes it easier to fall for unfamiliar variations or trap options.
Track three things in every mock:
Do not copy another candidate's attempt target simply because they achieved a high percentile with it.
Instead, use your own mocks to identify the attempt range in which you produce your best combination of raw score and accuracy.
Conceptual clarity should come first; shortcuts should make a correct method faster rather than replace understanding.
Solving a large number of questions can create the illusion of progress even when the same weaknesses continue appearing.
If you repeatedly make errors involving percentages, para-summary options, arrangements or set selection but never revisit them systematically, practice becomes less efficient.
The same applies to mocks. Analysis has limited value if your observations disappear into separate notebooks, screenshots or test-platform reports that you never review again.
Create one consolidated revision system.
Your error log can contain:
| Error | Section/Topic | Why It Happened | Corrective Action |
|---|---|---|---|
| Calculation mistake | QA – Percentages | Rushed arithmetic | Recheck final calculation |
| Wrong inference | VARC – RC | Went beyond passage | Demand textual support |
| Poor set choice | DILR | Started before evaluating alternatives | Compare sets first |
| Time loss | QA | Stayed too long on one question | Apply exit rule |
Review this log regularly, particularly before sectional tests and full-length mocks.
Your revision should increasingly focus on patterns of mistakes, not simply on re-reading everything you have studied.
CAT aspirants have access to an enormous number of books, courses, videos, question banks, Telegram groups and mock-test platforms.
More material does not automatically mean better preparation.
Constantly changing sources can leave you with hundreds of partially completed exercises and very little systematic revision. It can also create confusion when different instructors recommend different solving methods or strategies.
Choose a limited preparation stack for each purpose:
Add another resource only when you can identify the specific problem it solves.
If your issue is poor DILR set selection, for example, another general CAT book may not help. You need targeted DILR practice and analysis.
Depth of use matters more than the number of resources collected.
Full-length mocks are essential, but they are not the only form of timed preparation you need.
If you take a full mock once a week but spend the remaining days practising without time pressure, you may improve your solving ability without improving your ability to use that skill within a CAT section.
Sectional tests shorten the feedback cycle.
They allow you to experiment with VARC order, DILR set selection or QA pacing without waiting for the next complete mock.
Use three levels of practice:
After each sectional test, analyse it with the same seriousness as a full mock. Look beyond the score and examine where your time went, what you should have attempted and whether your selection process was sound.
CAT is a crucial part of the MBA admission process, but it is not necessarily the final stage.
Individual institutes use different admission processes. Depending on the B-school, shortlisted candidates may face a Personal Interview and, where applicable, a WAT, AWT or other institute-specific evaluation. Current published policies themselves demonstrate this variation: IIM Ahmedabad includes AWT and PI, IIM Calcutta uses WAT and PI, while IIM Bangalore follows its own selection process.
That does not mean CAT aspirants should divert large amounts of preparation time away from the exam.
It does mean that light, consistent groundwork can prevent a last-minute rush.
You can gradually:
Once CAT is over, increase the intensity according to the selection processes of the institutes you are targeting.
You do not need to wait until every topic is complete. An early diagnostic mock can reveal your starting point, and subsequent mocks can become more frequent as your preparation develops. The right timing depends on your preparation stage, but postponing all mocks until the final weeks reduces the time available to correct strategic weaknesses.
There is no universal number of hours. A useful analysis should continue until you understand why you lost marks or time, which questions you should have selected differently and what needs to change before the next test. For some mocks, the analysis may take as long as or longer than the test itself.
Neither metric should be considered in isolation. Your objective is to maximise raw score through a productive combination of attempts, accuracy and question selection. Because incorrect MCQs carry a penalty under the current CAT pattern, aggressive guessing can reduce your score.
That is risky if your target institutes use sectional thresholds. Admission requirements vary across IIMs and across categories, so check each institute's current policy rather than relying on a single generic cutoff.
CAT should remain the priority before the examination, but light background preparation can help. After the test, check the exact selection process of every institute on your shortlist because PI, WAT, AWT and other requirements are institute-specific.
Most CAT preparation mistakes are not caused by a lack of hard work. They happen when candidates practise without analysing, study without prioritising, chase attempts without considering accuracy or continue using a strategy even after their mock data shows that it is not working.
The solution is not necessarily to study for more hours.
Use mocks as diagnostic tools, balance the three sections, practise question selection, maintain an error log, revise deliberately and build your strategy around evidence from your own performance.