The CAT 2026 DILR section is expected to have 20 questions across 5 sets, with Seating Arrangement, Scheduling, and Multi-Variable Tables being the highest-frequency set types based on trends from 2019 to 2025.
The Data Interpretation and Logical Reasoning section is widely considered the most unpredictable part of CAT. Unlike QA or VARC, DILR has no fixed chapter syllabus — it tests your ability to analyse novel sets quickly under time pressure. Studying historical set-type frequency helps you prioritise which topics to master before CAT 2026.
- CAT 2026 DILR: 20 questions, 40 minutes (based on CAT 2022–2025 pattern)
- Structure: 5 sets of 4 questions each
- Marking: +3 correct (MCQ), –1 wrong (MCQ), no negative marking for TITA questions
- DI and LR sets are not officially separated — they appear mixed in the paper
- Seating Arrangement and Scheduling have appeared in every CAT paper since 2015
| CAT 2026 Official Website | iimcat.ac.in |
CAT 2026 DILR Section Overview
The DILR section is Section 2 of the CAT paper. Based on the format followed since CAT 2022, it carries 20 questions spread across 5 sets of 4 questions each, with a dedicated 40-minute window. You cannot switch to other sections during this time. The section mixes Data Interpretation and Logical Reasoning sets without officially separating them.
| Parameter | Details |
|---|---|
| Section Name | Data Interpretation and Logical Reasoning (DILR) |
| Total Questions | 20 (based on CAT 2022–2025 pattern) |
| Time Allowed | 40 minutes |
| Sets per Paper | 5 sets × 4 questions |
| MCQ Correct Marks | +3 |
| MCQ Negative Marking | –1 |
| TITA Negative Marking | None |
| DI vs LR Split | Approximately 2–3 sets each (not fixed officially) |
Chapter-Wise DILR Set Types and Weightage
IIM does not publish an official chapter-wise syllabus for DILR. Analysis of CAT papers from 2015 to 2024 reveals consistent frequency patterns across set types. High-frequency set types account for roughly 60 to 70 percent of all DILR sets across years. The table below ranks every major set type by how often it has appeared.
| Set Type | Category | Frequency (Last 10 Years) | Preparation Priority |
|---|---|---|---|
| Seating Arrangement (Linear / Circular / Complex) | LR | 9 out of 10 years | Very High |
| Scheduling and Timetabling | LR | 8 out of 10 years | Very High |
| Tables (Multi-Variable) | DI | 8 out of 10 years | Very High |
| Bar Charts | DI | 7 out of 10 years | High |
| Games and Tournaments | LR | 7 out of 10 years | High |
| Caselets (Text-Based DI) | DI | 6 out of 10 years | High |
| Binary Logic (Truth-Tellers and Liars) | LR | 6 out of 10 years | High |
| Network and Flow Diagrams | DI | 5 out of 10 years | Moderate |
| Pie Charts | DI | 4 out of 10 years | Moderate |
| Line Graphs | DI | 4 out of 10 years | Moderate |
| Venn Diagrams | LR | 3 out of 10 years | Low |
| Blood Relations | LR | 2 out of 10 years | Low |
Most Important DI Set Types for CAT 2026
Data Interpretation sets require you to extract, compute, and compare data from graphs, tables, and text. Tables and Caselets dominate recent CAT DI sets, having displaced simpler single-graph formats that were common before 2018. Modern CAT DI sets are harder because they combine multiple data sources and embed questions that require inferring missing values.
| DI Set Type | Core Skill Tested | Expected Sets in CAT 2026 |
|---|---|---|
| Multi-Variable Tables | Cross-referencing, percentage change, conditional filtering | 1–2 sets |
| Caselets | Reading comprehension combined with quantitative inference | 1 set |
| Bar Charts | Comparison across categories, ratio analysis | 0–1 set |
| Pie Charts | Proportional splits, percentage calculations | 0–1 set |
| Network and Flow Diagrams | Tracing paths, computing total throughput | 0–1 set |
Post-2018 CAT DI sets frequently combine two data sources — for example, a table paired with a bar chart — and include questions where some values are missing or must be derived. Practise sets with incomplete information to build this inference skill before CAT 2026.
Most Important LR Set Types for CAT 2026
Logical Reasoning sets present a scenario with constraints and ask you to find the only valid arrangement or conclusion. Seating Arrangement, Scheduling, and Games and Tournaments together account for over 50 percent of all LR sets in CAT history — mastering these three types is the foundation of any 95+ percentile DILR performance.
| LR Set Type | Common Sub-Types | Expected Sets in CAT 2026 |
|---|---|---|
| Seating Arrangement | Linear, Circular, Complex multi-row, Mixed facing | 1–2 sets |
| Scheduling and Timetabling | Day/slot assignment, ordering with multiple constraints | 1 set |
| Games and Tournaments | Round-robin, knockout brackets, league tables | 0–1 set |
| Binary Logic | Truth-tellers and liars, alternating statement patterns | 0–1 set |
| Constraint-Based Puzzles | Allocation, matching, sequencing | 0–1 set |
| Venn Diagrams | Three-circle, conditional membership problems | 0–1 set |
IIM paper-setters regularly introduce novel formats to prevent pattern memorisation. Since CAT 2021, hybrid sets that blend DI data formats with LR-style constraints have appeared in multiple slots each year — a trend expected to continue in CAT 2026. Practise sets that combine, for example, a tournament results table with truth-teller logic constraints.
Year-Wise DILR Frequency Trends (2019–2025)
The table below shows how the DILR structure and dominant set types have evolved from CAT 2019 to CAT 2025. Data for CAT 2025 reflects expected trends based on the 2022–2024 pattern; the official paper was not available at the time of writing.
| Year | Total DILR Questions | Dominant LR Sets | Dominant DI Sets | Notable Feature |
|---|---|---|---|---|
| CAT 2019 | 32 | Seating, Scheduling, Binary Logic | Tables, Bar Charts | 8 sets; highest question count in recent history |
| CAT 2020 | 24 | Seating, Games and Tournaments | Caselets, Tables | Shorter 2-hour format due to COVID; 76 total questions across sections |
| CAT 2021 | 24 | Scheduling, Binary Logic | Tables, Network Diagrams | 6 sets × 4 questions; hybrid DI-LR sets introduced for first time |
| CAT 2022 | 20 | Seating, Scheduling | Bar Charts, Caselets | Shift to 5 sets × 4 questions; this format has been retained since |
| CAT 2023 | 20 | Seating, Games and Tournaments | Tables, Caselets | One unconventional set per slot; overall difficulty higher than 2022 |
| CAT 2024 | 20 | Scheduling, Binary Logic, Seating | Tables, Bar Charts | Multiple hybrid DI-LR sets; TITA questions spread across several sets |
| CAT 2025 (expected) | 20 | Seating, Scheduling | Tables, Caselets | Based on 2022–2024 trends; official paper not yet released |
The most significant structural change came after CAT 2020, when DILR was cut from 32 to 20 questions. Each set now carries more individual weight — one misread set costs you 4 questions and up to 12 marks, which is roughly the margin between a 90th and 95th percentile DILR score. Smart set selection became an essential exam skill from CAT 2022 onwards.
Preparation Strategy by Weightage for CAT 2026
Use the frequency rankings above to build a tiered preparation plan. The goal is to achieve mastery in high-frequency set types and build working familiarity with moderate-frequency types before the exam date.
- Tier 1 — Must Master: Seating Arrangement in all variants (linear, circular, complex), Scheduling and Timetabling, Multi-Variable Tables. These appear in almost every CAT paper and form the baseline for a 90+ percentile DILR score.
- Tier 2 — Build Strong Command: Games and Tournaments, Caselets, Binary Logic, Bar Charts. Mastery here separates 90th-percentile scorers from 97th-percentile scorers.
- Tier 3 — Awareness Level: Network Diagrams, Pie Charts, Line Graphs, Venn Diagrams, Blood Relations. Understand the format but do not over-invest preparation time in these low-frequency types.
- Set Selection in the Exam: Spend the first 2–3 minutes reading all 5 sets before attempting any. Solving 3–4 sets fully and accurately is more effective than touching all 5 sets incompletely.
- Hybrid Set Practice: Work through sets that blend DI data with LR constraints. These appeared in CAT 2021 through 2024 and are expected in CAT 2026 as well.
Based on scaling trends from CAT 2022 to 2024, answering 13 to 16 questions correctly out of 20 is typically sufficient for a 95+ percentile in DILR. You do not need a near-perfect score. Accuracy and disciplined set selection matter more than attempting every question in the section.
CAT 2026 DILR Chapter-Wise Weightage FAQs
Ques. How many questions are in the CAT 2026 DILR section?
Ans. Based on the CAT 2022–2024 format, the DILR section is expected to have 20 questions across 5 sets of 4 questions each, with a 40-minute time limit. The official CAT 2026 notification at iimcat.ac.in will confirm the final structure before the exam.
Ques. Which DILR set type appears most often in CAT?
Ans. Seating Arrangement is the most frequently tested DILR set type, appearing in 9 of the last 10 CAT papers. Scheduling and Timetabling and Multi-Variable Tables each appear in approximately 8 of 10 years — making all three the highest-priority topics for CAT 2026 preparation.
Ques. Is there an official DI vs LR split in CAT DILR?
Ans. No. IIM does not publish a fixed DI-LR split. Historically, the section has featured approximately 2 to 3 DI sets and 2 to 3 LR sets per paper, but the exact balance varies by year. Prepare both types equally rather than over-weighting either for CAT 2026.
Ques. How many correct answers are needed for 99 percentile in CAT DILR?
Ans. Based on scaling trends from CAT 2022 to 2024, answering approximately 15 to 18 out of 20 questions correctly is typically in the 99-percentile range for DILR. Attempting 4 out of 5 sets with high accuracy is more effective than attempting all 5 with avoidable errors.
Ques. Are hybrid DI-LR sets common in recent CAT papers?
Ans. Yes. Since CAT 2021, hybrid sets combining DI data formats with LR-style constraints have appeared in multiple slots each year. These are typically the hardest sets in the paper. Practising constraint-based caselet sets and scheduling problems that use data tables will help you prepare for this format.
Ques. Is Blood Relations still a relevant topic for CAT 2026 DILR?
Ans. Blood Relations as a standalone set type has become rare in recent CAT papers, appearing in only 2 of the last 10 years. It is a low-priority topic for CAT 2026. Redirect that preparation time to Seating Arrangement, Scheduling, and Games and Tournaments instead.
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