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Most Difficult Paper by CAT In Last 5 Years, Difficulty Level Analysis

Most Difficult Paper by CAT In Last 5 Years was CAT 2023 Slot 3, which had exceptionally tough QA and DILR sections, resulting in one of the lowest 99%ile scores (around 86–90 marks). CAT 2021 was also highly difficult, while CAT 2024 remained moderate with 68 questions. Aspirants should review CAT previous year papers and tough slots to understand changing difficulty trends.
authorImageShivani Kumari3 Dec, 2025
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Most Difficult Paper by CAT In Last 5 Years

Most Difficult Paper by CAT in Last 5 Years is an important point of reference for aspirants. The exam tests conceptual understanding and time management and composure under pressure. From the last five years, CAT 2020 to CAT 2024, multiple structural changes caused changes in levels of difficulty. Having an understanding of these trends helps candidates to prepare an effective and realistic strategy.

Based on expert analysis, score vs. percentile trends, and student feedback, CAT 2023 Slot 3 and CAT 2021 stand out as the most challenging papers in recent history. While CAT 2021 was consistently difficult in all three slots, the CAT 2023 Slot 3 paper is regarded as the Toughest CAT paper to Date. This was regarded as this owing to the very difficult Quantitative Ability (QA) section combined with a challenging Data Interpretation and Logical Reasoning (DILR) section.

Most Difficult Paper by CAT In Last 5 Years: CAT 2023 Slot 3 Analysis

The CAT 2023 examination was conducted by IIM Lucknow. It maintained a Moderate to Difficult level among all three of its slots. However, the Slot 3 paper showcased a unique level of difficulty in the QA and DILR sections. This leads to a drop in the raw score required to achieve top percentiles.

Most Difficult Paper by CAT In Last 5 Years: CAT 2023 Slot 3 Analysis

Section

Difficulty Level Rating (1-10)

Key Challenges

Quantitative Ability (QA)

8.5/10

Dominated by multi-concept and advanced Algebra questions, making question selection extremely hard.

Data Interpretation & Logical Reasoning (DILR)

9.0/10

Highly unconventional and calculation-heavy sets. Aspirants struggled to identify two fully solvable sets.

VARC

7.8/10

High ambiguity in options and complex, dense Reading Comprehension (RC) passages.

Overall

9.2/10

The highest difficulty rating was observed across all slots in the last five years.

 

The difficulty of this particular paper meant that candidates required a raw score of only around 86-90 marks to secure a 99 percentile. It was one of the lowest marks required for that percentile in the last five years. This also indicates its tough nature.

CAT Previous Year Question Paper Difficulty Trend (2020-2024)

Having an understanding of the trend is very important for your preparation. The table here provides a comparison of the complete difficulty, questions, and the approximate raw score needed for a 99th percentile in the last five CAT exams. 

CAT Previous Year Question Paper Difficulty Trend (2020-2024)

CAT Year

Total Questions

Overall Difficulty Level

Approx. Raw Score for 99%ile

CAT 2024

68

Moderate

96-98 Marks

CAT 2023

66

Moderate to Difficult (Slot 3 was Very Difficult)

86-96 Marks

CAT 2022

66

Moderate to Difficult

91-93 Marks

CAT 2021

66

Difficult (Especially DILR)

97-100 Marks

CAT 2020

76

Moderate to Difficult (Format Change)

102-105 Marks

 

CAT 2024 Paper Analysis

The CAT 2024 paper was considered to be the most balanced and moderate exam in the last five years. Here are some major pointers from the CAT 2024 paper analysis:

Total Questions: The total number of questions increased slightly to 68 (from 66 in 2023), with the DILR section expanding to 22 questions.

DILR: The section was comparatively easier than in previous years, allowing students to crack 2 to 3 sets comfortably.

QA: The Quantitative Ability section was rated Moderate, similar to CAT 2023, dominated by Arithmetic questions.

VARC: The section was Moderate, with dense passages but doable questions, rewarding high accuracy.

Section Wise Difficult Paper in CAT

When reviewing a Difficult paper by CAT questions, the challenge stems from two sections: DILR and QA.

DILR: The Consistent Challenge

The Data Interpretation and Logical Reasoning (DILR) section has historically been the biggest differentiator in the CAT exam. It often proves to be the most time-consuming and challenging section.

  • CAT 2021: This year saw a DILR section that was exceptionally difficult. With only 4 sets, two were considered extremely tough, forcing a focus on smart set selection.

  • CAT 2023 Slot 3: Sets were highly complex and involved heavy calculations, requiring aspirants to manage multiple conditions under severe time pressure.

QA: The Volatility Factor

While DILR is consistently tough, the difficulty level of the Quantitative Ability (QA) section is highly volatile and often determines the overall paper’s toughness.

  • CAT 2023 Slot 3: The difficulty of this slot was primarily driven by QA. The questions were multi-step, required deep conceptual clarity, and were dominated by tricky Algebra and Number System problems.

  • CAT 2022: The QA section in CAT 2022 was also rated highly difficult, with questions requiring unconventional approaches and lengthy calculations, making it a high-risk section.

Preparation Strategy to Crack Difficult Paper by CAT Questions

In order to prepare for a Difficult paper by CAT questions, candidates need a disciplined and smart strategy. This strategy focuses to prioritize accuracy and question selection.

Prioritize Accuracy: In a tough paper like CAT 2023 Slot 3, raw scores drop significantly. It focus on securing 2-3 correct sets in DILR and achieving 50-60% accuracy in VARC and QA to hit the 99th percentile mark. 

Master Arithmetic and Algebra: These two areas dominate the QA section. A good command of these topics helps candidates to get a solid foundation to tackle the toughest questions.

Practice Challenging DILR Sets: The key to DILR is to identify the doable set within the first few minutes. Practice complex puzzles, quant-based sets, and games or tournament problems from previous tough papers.

Simulate Real Exam Conditions: Take full-length, mock tests replicating the latest pattern 68 questions, 120 minutes to build stamina and practice time management.

Structured Preparation: Enroll in a comprehensive program like Physics Wallah (PW) Online Coaching for CAT 2025. Our structured courses and sectional test series are designed to prepare you for the volatility and difficulty of the challenging CAT papers. 

 

Most Difficult Paper by CAT In Last 5 Years FAQs

Which is the Most Difficult Paper by CAT In Last 5 Years?

CAT 2023 Slot 3 is considered the Most Difficult Paper by CAT in the last 5 years due to the high difficulty of its Quantitative Ability (QA) and Data Interpretation & Logical Reasoning (DILR) sections. It resulted in one of the lowest 99%ile scores in recent history.

Is CAT 2024 considered a Toughest CAT paper till Date?

No. CAT 2024 was rated as a Moderate difficulty paper due to an easier DILR section. It was considered balanced than the difficult papers of CAT 2021 and CAT 2023 Slot 3.

Where can I download the CAT Question paper with solution PDF?

You can download the CAT Question paper with solution PDF for all slots of the last five years (2020-2024) from the official website. It provides a dedicated section for CAT Previous year papers and solutions.

How many questions should I attempt in the Difficult paper by CAT questions for a 99%ile?

The focus should be on accuracy in a challenging CAT paper. For the 99 percentile, a net correct score of approximately 32 to 35 questions of 66-68 is sufficient. In a difficult slot like CAT 2023 Slot 3, a net correct score of 29-30 questions could fetch a 99 percentile.

What was the major change in the CAT pattern over the last 5 years?

The biggest change in the last five years was the reduction of the exam duration from 3 hours to 2 hours, 120 minutes, in 2020 after the reduction in the total number of questions, from 66 in 2021-2023 and increasing to 68 in CAT 2024.
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