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Sanghamitra Deb

Content Writer | Updated On - Nov 28, 2025

CAT Data Interpretation & Logical Reasoning (DILR) section is the trickiest, lengthy, and unpredictable part of the examination. Candidates should need to start the preparation 5-6 months before the exam date with all the important topics like Bar Graphs, Seating Arrangement, etc.

As per the CAT 2025 exam pattern, DILR includes 24 questions in the form of sets. Candidates can grab the 12 to 15 marks in each set after preparing the topics in the DILR sections. However, to score well in this section candidates should concentrate on improving their calculation speed. 

  • To obtain a 95+ percentile, you will have to obtain 45-50 raw marks. By attempting 20-22 questions with 90% accuracy, you can achieve that score. Check CAT Preparation Tips
  • CAT DILR section is considered one of the lengthy sections of CAT and rated moderate in terms of difficulty level by test takers of previous years. 
  • CAT Logical Reasoning Preparation primarily includes speed & accuracy of your reasoning skills, filtering unimportant information, etc.
  • Last year, 18 MCQ and 6 Non MCQ type questions were asked from CAT DILR.

Also Check:

CAT DILR Preparation Highlights

Section Name Data Interpretation and Logical Reasoning
Allotted Time 60 minutes
Total Number of Questions 32
Number of Data Interpretation Questions 16
Number of Logical Reasoning Questions 16
Total Marks 96
Type of Questions MCQs (24 questions); Non-MCQs (8 questions)
Marks Awarded for Each Correct Answer + 3
Negative Marks for Each Wrong Answer -1
Difficulty Level of Questions Moderate to Difficult

What is the DILR section in CAT?

CAT Examination consists of three sections: Verbal and Reading Comprehension, Data Interpretation & Logical Reasoning, and Quantitative Ability. Data Interpretation & Logical Reasoning covers 32% part of the CAT question paper. It tests candidates’ ability to answer the questions with speed and accuracy.

There are two types of questions that are asked in the DILR section of CAT: MCQs and TITA (type in the answer). In TITA questions, the options may or may not be available; you have to type your answer in the blank space given after the question. The exam pattern for this section is tabulated below:

Data Interpretation & Logical Reasoning Exam Pattern 2025
Number of sets 3-4 sets
Time Duration 40 minutes
Number of questions 24 (18 MCQs + 6 Non-MCQs)
Maximum Marks 72
Marking Pattern
  • +3 for a correct answer
  • -1 for an incorrect answer
(No negative marking for TITA type questions)

How to Prepare for CAT Data Interpretation?

There is no theory, no property, and no formula in Data Interpretation. One needs the skill to solve the Data Interpretation question. Data Interpretation sets in CAT can be further classified into four types.

  1. Calculation Based: These are sets that require a good command over basic calculation and approximation. It includes a question that deals with percentage increase/decrease or nominal increase/decrease.
  2. Counting Based: These types of questions require patience and focus to ensure that not a single mistake happens. Counting based DI questions is generally large data sets in which candidates are supposed to count the instances which meet the questions’ needs.
  3. Logic Based: These are logic based questions. Sometimes a chart gives you data in ranges or with conditions where it’s not possible to find the exact data directly, but logic based questions can be asked. For example, how many of the employees of the range 35 to 45 years would be above 40 years if the average age of employees of this age group is 42 years?
  4. Structure Based: These DILR questions of CAT include some special sets such as Goals of various teams in a tournament, sales-disposal data of a particular product in the market, etc. These types of questions are very time consuming and are rarely asked.

Some important tips for preparing for the DI CAT section are given below:

  • Get familiar with each and every important topic.
  • Work on improving your ability to comprehend voluminous data. Do not leave out DI sets that seem big on data volume. More data does not automatically mean a difficult set.
  • Charts or Graphs talk more than numbers. So, familiarize yourself with different forms of charts and graphs.
  • Improve your skills in analytical maths.
  • Learn to calculate the percentage increase or decrease or the comparison ratio as it will be an effective time-saving skill.
  • Mental calculation is a very good advantage when attempting the CAT exam. Develop the skill of mental calculation during CAT preparation. It includes Tables till 20, knowledge of Fractions from 1/1, 1/2, 1/3 till 1/20, basic Addition, Subtraction, Multiplication, Division, etc.
  • One more new concept in CAT is Caselets. These are sets of paragraphs that include numerical data in them, which needs to be put in a structure to be understood easily.
  • Solve DI sets that require reasoning skills and grow your knowledge for these sets.
  • Avoid trying to solve all the problems at once. Try to answer a bulk of easy questions and then a few difficult ones.

Also Check CAT Mock Test

How to Prepare for CAT Logical Reasoning?

A logical Reasoning question in the CAT exam requires basic common sense and a lot of practice. There are two stages in preparation for LR CAT:

  1. Getting correct answers for the LR questions
  2. Getting correct answers for the LR questions with optimum time and accuracy

Reaching the second stage from the first one is only possible by practice. Logical Reasoning questions in CAT can be quite time-consuming. Below given tips will help you to prepare for this section.

  • Prepare as per the latest trends on Logical Reasoning questions.
  • Practice using the process of elimination while solving previous years’ question papers or giving mock tests.
  • Practice more questions and mock tests in the last few days.
  • Try to play games such as Sudoku or puzzles to utilize your time. It will help you with the varying difficulty level and time constraints.
  • Give extra focus to frequently asked topics such as LR sets involving the arrangement of data in a tabular structure.
  • candidates are advised to give equal importance to the information provided in the question and the factual data and Get conceptual clarity. There are lots of videos of CAT toppers and other experts available on the internet on how to prepare for the CAT Logical Reasoning section.
  • Give approximately 5 hours to Logical Reasoning solving every week.

Important Preparation Tips for CAT DILR

To improve speed and accuracy in DILR CAT, candidates are advised to follow the tips given below:

  • Practice lots of questions and mock tests so that you get habituated to solving them with accuracy and time management. It gives the idea of your performance in the particular section.
  • Follow tricks or any short way to solve questions.
  • Review previous years’ question papers to analyze the level of difficulty and trick questions that often take candidates by surprise. It helps in devising a strategy for attempting this section in such a way that you score maximum marks.
  • Choose the questions wisely and practice solving them within the particular time limit.
  • Candidates are advised not to learn any new topics in the last week before the exam.
  • Analyze your performance regularly after every mock test or practice paper. Work hard on your weaker sections.
  • After analyzing, work on improving speed and focus on mental calculations to consume less time.
  • Prepare your own strategy to tackle difficult questions.
  • Questions of Data Interpretation and Logical reasoning are all about hidden information in the question. Don’t limit yourself to the questions provided in the study material. Utilize your time by solving Sudoku and puzzles.

Time Table for CAT DILR Preparation

Aspirants should make their own timetable according to their schedule. Here are some tips that you can follow while making the study schedule:

  • Divide the week evenly between all topics of DI and LR. Devote equal time to both DI and LR as all the important topics contain the same weightage.
  • Attempt two sets of DILR on a daily basis.
  • Invest one hour in revision to clear your concepts for DI/LR basics.

As per the DILR topics in the CAT syllabus, the time required for each important topic is given below:

Topic Time
Puzzles 3-4 days
Games and Tournaments 5 days
Arrangement 5 days
Scheduling and Networking 6 days
Cubes and other 2D spaces 1-week
Data sufficiency, Caselets and DI based growth 10 days
Venn Diagram, 4-5 days
Bar Graphs and Charts 2 weeks

Best books for CAT DILR Preparation

There are many books available in the market for CAT exam preparation. Some of the best books that are suggested by toppers to prepare well for the DILR section of CAT are given below:

Book Name Author/Publisher Book Highlights
How to prepare for Data Interpretation for CAT Arun Sharma/ McGraw Hill
  • Covers key aspects of fundamentals concepts of data interpretation
  • Contains different difficulty level questions on each type of DI topic and offers the right approach to solve these questions
  • Contains ‘Challenges in DI’ to help in solving tough questions
  • Contains 45 test papers with fully solved Mock tests and previous years’ papers of XAT, SNAP, and IIFT
How to prepare for Logical Reasoning for the CAT Arun Sharma/ McGraw Hill
  • Offers a simple and well-defined approach to understand LR topics
  • This book consists of more exercises and includes questions on each topic.
  • Contains practice questions on varying difficulty levels
  • Contains reasoning questions from XAT and IIFT with detailed solutions
Logical Reasoning and Data Interpretation for CAT Nishit K. Sinha/ Pearson Education
  • Combined book for DI and LR that covers all the fundamental and advanced topics with examples
  • Each chapter is followed by an exercise to provide clarity of knowledge
  • 2500+ solved DILR questions
  • Include practice tests and model papers for SNAP, XAT and IIFT

CAT DILR Preparation: Online Resources

Besides the books, there are tons of other various online resources available on the internet such as journals, PDFs, videos, etc, to prepare for the Data Interpretation and Logical Reasoning section in CAT. Some of the good resources are tabulated below:

Resource Description
Cracku Video
  • It is a one-hour long video that explains all the concepts in detail and tricks to solve DILR questions
Takshzila (Videos, PDFs)
  • Takshzila offers a set of 7 videos covering each topic and trick.
  • It also provides PDFs for Verbal logic and DI calculation to solve the questions quickly.
TCY Online
  • Provides free mock tests that are particularly designed for the DILR section.
Career Launcher (DI/LR)
  • Provides sectional tests in varying difficulty levels
Academy of Management Journal
  • Is an online journal that contains great content in the field of management.
  • It can help in preparing for the CAT DILR section as it focuses on findings that directly apply to the practice of management.

Steps to Solve CAT DILR Questions

Steps to solve Data Interpretation and Logical Reasoning questions in CAT are given below:

  1. Scan the test: Do not start solving questions as soon as you see the paper because you may end up with difficult questions while the easy questions are later in the paper. Read all the questions properly for 4-5 minutes and select a few sets that are easy for you to solve quickly. Select the easy set which takes less time and calculation first and then move to the difficult one.
  2. Read the question: Read the question very carefully and understand the need before starting to solve the question. Do not use any information which is not provided to you in the given question as it is not an assessment of how much you generally know about a particular topic.
  3. Take a look at the given options: Before jumping into the calculation part or eliminating the options, consider all the given options carefully and understand how accurately the answer needs to be found.
  4. Organize the information: Utilize the provided tables, charts, or graphs and fetch the required data.
  5. Choose the correct option: Try to find the correct option and note the exact answer. For example, if the options have an acceptable gap between them, there is no need to find the exact answer; simple approximation and elimination will get you the answer.
  6. Move Ahead: If you are not able to derive the answer while solving the DILR questions, leave the question for the later and move on with the next one. Some of the questions are very tricky and it is okay to not answer them as it will consume your time.

Preparation Tips from CAT Toppers

Rahul Manglik (100% in CAT 2019)

  • Practice a lot of questions from all the topics because they have the same weightage.
  • Students must analyze their performance on mock tests to identify their weak areas and improve them.

Lakshya Kumar (99% in CAT 2019)

  • Allot specific time duration for every question. He allotted a maximum of 8 minutes to puzzle questions irrespective of whether he got stuck while solving them or not.
  • Students should spend some time at the beginning of the test categorizing the questions into easy, moderate, or difficult levels.
  • He recommends analyses of mock tests to enhance practice in the CAT DILR section.

Rohan Joshi (99.63 % in CAT 2017)

  • Solve different puzzles and Sudoku to enhance logical thinking ability.
  • Gave sectional tests to check the knowledge of preparation.

CAT 2025 DILR Syllabus

In DILR CAT, an equal number of questions are asked from both the topics. These questions feature in the form of sets with 4-6 questions each. There is no specific syllabus declared by the CAT authorities for the examination. However, by seeing previous years’ trends, reference syllabus/important topics for DILR CAT 2025 are given below:

Data Interpretation Syllabus

Tables Line Chart
Venn diagram Pie Chart
Scatter Plot Radar Chart
Column Graph Bar Graph
Routes and Network Radar Chart Bubble chart
Data Caselets – Reasoning Based data interpretation Combination of Two or more types linked to each other (Ex. Graph-Bar diagram, Tables-Pie Chart, Graphs-Charts, etc.)

Logical Reasoning Syllabus

Team Formation Seating Arrangements
Order and Ranking Binary Logic
Games and Tournaments Number and Letter Series
Calendars Cubes
Clocks Syllogism
Logical Sequence and Connectives Blood Relations

FAQs

Ques. What are the expected topics in DILR CAT 2025?

Ans. Some of the expected topics in DILR CAT 2025 are given below:

Blood relations Puzzles
Data sufficiency Graphs Related questions
Seating arrangement Data arrangement
Tables Caselets
Clocks & Calendars Assumptions & binary logic
Syllogism and Venn Diagrams Pie chart

Ques. What is the exam duration of CAT 2025?

Ans. The exam duration of CAT 2025 is 120 minutes. For general/reserved category candidates, 40 minutes is allocated for three sections each. For candidates under PWD/Reserved category, the time limit of each section is 53 minutes 20 seconds.

Ques. How can I improve my score in the DILR section?

Ans. Although DILR is a tough section to crack, one can score well in this section by following the right section and the right mindset. Every candidate can choose a strategy. In general, it revolves around two things: Time management and question selection. These two factors are major gameplay if the candidate wants to improve their score in CAT.

Ques. How many sections are there in CAT 2025?

Ans. There is no change in sections in CAT 2025. It has 3 sections namely Verbal Ability and Reading Comprehension, Quantitative Aptitude, and Data Interpretation and Logical Reasoning.

Ques. Which math topics are most important for CAT?

Ans. Some of the important topics of mathematics for the CAT exam are given below:

Time and Work Interests (SI, CI)
Time, Speed, and Distance Probability
Geometry Number System, Basic Arithmetic
Algebra Permutation and Combination
Profit, loss and, Discounts Trigonometry, Logarithm, and Sets

Ques. Is the DILR section in CAT tough?

Ans. DILR section in CAT 2025 is expected to be tough among the other three sections. This section is unpredictable and it tests candidates’ ability to solve data and logic based questions with speed and accuracy.

Ques. Can I prepare for DILR by self-study?

Ans. Yes, one can score well in DILR by self-study. With the right study material, regular practice of mock tests and question papers, the right approach for preparation and efforts candidates can score well in DILR CAT by self-study.

Ques. How many hours of preparation are required for CAT to score well?

Ans. There are various students who are in their final year, pre-final year, or are working students preparing for the CAT exam. So allot time according to your academic or working schedule; but for scoring well, it is advisable to give time around 25-30 hours per week to prepare for CAT.

Ques. Can a weak student in math crack the CAT exam?

Ans. It is a myth that weak students in math cannot crack CAT. CAT examination demands only basic mathematical skills and its application that we have learned till class 10. Knowledge of basic arithmetic and proportionality tools, numbers, time speed distance, algebra, and geometry is more than enough to help you crack the test.

In fact, there are high numbers of students who crack the CAT every year, despite not being from an engineering, statistics, or mathematical background.

Ques. How many DILR sets are there in the CAT exam?

Ans: CAT DILR section contains a total of 4 sets of 22-24 questions. In which, two sets contain 6 questions and two sets contain 8 questions.

*The article might have information for the previous academic years, please refer the official website of the exam.

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