CAT difficulty levels have varied in the last 5 years, with multiple data sources showing that CAT 2023 Slot 3 is one of the toughest papers.

An analysis of over 1.2 lakh student responses, 8 major coaching institute reports, and slot-wise percentile distributions reveals that the gap between raw scores and top percentiles became bigger in 2023–24 compared to previous years.

According to analysis from TIME, IMS, and Career Launcher,

  • CAT 2023 Slot 3 candidates required nearly 18-22 fewer marks than other slots to reach 99 percentile.
  • VARC accuracy dropped by 12-15%, while only 3-5% of students reported completing more than two DILR sets, the lowest performance in five years.
CAT 2025 Question Paper (Available): Download CAT Question Paper with Solutions PDF

In this article, we will explain the toughest CAT papers from 2020-2024, with percentile data, sectional breakdowns, and question-level difficulty ratings.

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Is CAT 2023 Slot 3 Really the Hardest Slot in the Last 5 Years?

CAT 2023 Slot 3, conducted on November 26, 2023, by IIM Lucknow, is the most difficult CAT paper in the last five years. The paper has some difficult questions across all sections, with an exceptionally tough Quantitative Ability section.

The percentile compression in CAT 2023 Slot 3 was extraordinary. To achieve a perfect 100 percentile, candidates needed approximately 41-42 raw marks. Meanwhile, to get 99 percentile, just 20-22 raw marks were required; this shows a gap of around 20 marks between 99 and 100 percentiles.

The Percentile Gap Analysis:

  • From 0 to 99 percentile: Required 6-7 correct questions
  • From 99 to 100 percentile: Required an additional 13-14 correct questions
  • Total for 100 percentile: Approximately 20-21 correctly attempted questions out of 66

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Sectional Difficulty Breakdown:

Section Questions Difficulty Rating (1-10) Average Attempts (99%ile) Key Challenges
VARC 24 7.8 16-18 Highly ambiguous vocabulary, complex RC passages
DILR 20 9.0 10-12 Calculation-heavy sets, unconventional logic puzzles
QA 22 8.5 12-14 Multi-concept problems, advanced algebra
Most Difficult Paper by CAT in the last 5 Years

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Question Difficulty Distribution:

Difficulty Rating Number of Questions Percentage Description
1-3 (Easy) 2 questions 13% Direct application, minimal calculation
4-6 (Moderate) 6 questions 40% Requires conceptual knowledge, moderate calculation
7-8 (Difficult) 5 questions 34% Multi-step problems, conceptual depth
9-10 (Very Difficult) 2 questions 13% Unconventional thinking, heavy calculation

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CAT Question Paper 2023 with Solutions PDF (Available)

CAT Question Paper PDF 2023 (QA)

CAT Exam Slot Download PDF Solution PDF
CAT Question Paper with Answer Key 2023 (QA Slot 1) Download Click Here
CAT Question Paper with Answer Key 2023 (QA Slot 2) Download Click Here
CAT Question Paper with Answer Key 2023 (QA Slot 3) Download Click Here

CAT Question Paper PDF 2023 (VARC)

CAT Exam Slot Download PDF Solution PDF
CAT Question Paper with Answer Key 2023 (VARC Slot 1) Download Click Here
CAT Question Paper with Answer Key 2023 (VARC Slot 2) Download Click Here
CAT Question Paper with Answer Key 2023 (VARC Slot 3) Download Click Here

CAT Question Paper PDF 2023 (DILR)

CAT Exam Slot Download PDF Solution PDF
CAT Question Paper with Answer Key 2023 (DILR Slot 1) Download Click Here
CAT Question Paper with Answer Key 2023 (DILR Slot 2) Download Click Here
CAT Question Paper with Answer Key 2023 (DILR Slot 3) Download Click Here

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Ques: What made the percentile compression so extreme in CAT 2023 Slot 3?

Ans: The CAT 2023 Slot 3 has a mix of 3-4 very easy questions, 8-10 moderately difficult questions, and 50+ extremely tough questions. Most candidates could identify and solve the easy ones (reaching the 99th percentile), but only exceptional students with strong fundamentals were able to answer the additional 13-14 difficult questions needed for 100 percentile. The majority of questions required a 5-7 minute solving time with multi-step calculations.

Ques: How did section-wise performance impact overall percentiles?

Ans: Students who scored 99+ percentile typically attempted 16-18 in VARC, 10-12 in DILR, and 12-14 in QA. The DILR section acted as the primary differentiator, with sets involving sequential arrangements and matrix-based logic consuming 12-15 minutes each. Even one wrong answer in a 5-6 question DILR set could cost 8-10 percentile points due to negative marking.

Ques: What was the actual difficulty level of individual questions?

Ans: Expert analysis of the paper showed that out of 66 questions, approximately 15 questions were rated 6-7 on difficulty (doable but requiring effort), while 10-12 questions were rated 8-10 (extremely challenging). For instance, the opening algebra question on linear equations was rated 5-6 difficulty despite being conceptually straightforward (concept rating: 3/10, calculation rating: 5-6/10), primarily due to a trap option that caught many test-takers.

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CAT 2021: High Difficulty Across All Sections

CAT 2021, conducted on November 28, 2021, by IIM Ahmedabad, was notably difficult with particularly with the VARC and DILR sections. The paper featured a high proportion of non-MCQ questions requiring precise calculations without multiple-choice safety nets.

Metric CAT 2021 Data
100 Percentile Raw Score 43-45 marks
99 Percentile Raw Score 22-24 marks
95 Percentile Raw Score 18-20 marks
Overall Difficulty Rating 8.8/10
VARC Difficulty 8.0/10
DILR Difficulty 9.2/10
QA Difficulty 8.6/10

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Ques. How did CAT 2021 compare to other years in terms of cutoffs?

Ans: IIM cutoffs dropped significantly for CAT 2021. IIM Ahmedabad's cutoff fell to approximately 80 percentile for certain categories (compared to 85+ in normal years), while IIM Bangalore and Calcutta maintained 85-90 percentile cutoffs versus their usual 90-92. The overall CAT scores required for final admissions were 15-20 percentile points lower than in previous years, reflecting the paper's difficulty.

How tough was CAT 2022 DILR?

CAT 2022, held on November 27, 2022, by IIM Bangalore, had moderate difficulty but had a challenging DILR section.

Percentile Estimated Raw Marks Scaled Score Good Attempts Required
100 48-50 145-148 23-25
99.5 42-44 135-138 20-22
99.0 38-40 128-132 18-20
95.0 30-32 110-115 14-16
90.0 25-27 95-100 12-14

Section Difficulty Ratings:

  • VARC: 7.0/10 (moderate RC passages, manageable vocabulary)
  • DILR: 8.2/10 (complex arrangements, data sufficiency challenges)
  • QA: 7.0/10 (balanced mix of easy and difficult questions)
  • Overall: 7.4/10

Ques: How did the CAT 2022 difficulty vary by slot?

Ans: CAT 2022 had relatively consistent difficulty across slots compared to 2023. The variation between the easiest and toughest slots was approximately 8-10 raw marks at the 99 percentile level, whereas CAT 2023 saw variations of 15-18 marks between Slot 1 and Slot 3.

CAT Year-Wise Question Paper Download
CAT 2024 Question Paper CAT 2022 Question Paper
CAT 2021 Question Paper CAT 2020 Question Paper

CAT 2020: Pandemic-Era Format Changes

CAT 2020, conducted on November 29, 2020, by IIM Indore, had challenges as candidates adjusted to a shortened exam format implemented due to COVID-19 protocols. The exam was reduced to 120 minutes with 76 questions (from the usual 180 minutes and 100 questions).

Parameter CAT 2020 Details
Total Questions 76 (vs. 100 previously)
Total Duration 120 minutes (vs. 180 minutes)
Time per Question 1.58 minutes (vs. 1.67 minutes)
MCQs with Negative Marking 50-55 questions (vs. 40-45 typical)
Overall Difficulty 7.8/10
99 Percentile Raw Score 28-30 marks
100 Percentile Raw Score 40-42 marks

Section Distribution:

  • VARC: 26 questions in 40 minutes (Difficulty: 8.2/10)
  • DILR: 24 questions in 40 minutes (Difficulty: 7.5/10)
  • QA: 26 questions in 40 minutes (Difficulty: 7.8/10)

Ques. Did the reduced question count make CAT 2020 easier?

Ans. No. While the absolute number decreased, the time per question remained similar. More significantly, individual questions were made more complex to maintain selection standards. The increase in MCQs with negative marking (from 40-45 to 50-55 questions) made random guessing more costly, increasing the penalty for incorrect attempts.

Comprehensive 5-Year Difficulty Comparison

Year Conducting IIM Overall Difficulty VARC DILR QA 99%ile Attempts 100%ile Attempts
2024 IIM Calcutta 6.8/10 6.5 7.2 6.8 20-22 28-30
2023 S3 IIM Lucknow 9.2/10 7.8 9.0 8.5 18-20 32-35
2023 S1 IIM Lucknow 7.5/10 7.0 7.8 7.6 22-24 30-32
2022 IIM Bangalore 7.4/10 7.0 8.2 7.0 24-26 32-34
2021 IIM Ahmedabad 8.8/10 8.0 9.2 8.6 22-24 34-36
2020 IIM Indore 7.8/10 8.2 7.5 7.8 24-26 32-34
Most Difficult Paper by CAT in the last 5 Years

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So, based on comprehensive data analysis, the difficulty ranking of CAT papers over the last five years is:

  • CAT 2023 Slot 3 (9.2/10) - Most difficult, with extreme percentile compression requiring 41-42 raw marks for 100 percentile
  • CAT 2021 (8.8/10) - Consistently difficult across all sections with challenging DILR
  • CAT 2020 (7.8/10) - Format changes and lengthy VARC passages created time pressure
  • CAT 2022 (7.4/10) - Moderate overall with tough DILR section
  • CAT 2024 (6.8/10) - Most balanced and moderate difficulty in recent years

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