How Many Students Appeared for CAT 2021? Full Data

CAT 2021 is the only post-pandemic CAT cycle where fewer than 2 lakh candidates walked into a test centre. Exactly 1,91,660 students appeared out of 2,29,969 registered, and that gap is the reason every CAT growth claim you read today needs a baseline check. CAT 2021 sits at the statistical floor of the current era - the lowest appearance count in the last five years. Every number that follows, from the 83.34 percent attendance rate to the 9 candidates who scored 100 percentile, carries the fingerprint of a cohort still recovering from pandemic disruption. For any CAT 2026 aspirant, understanding the 2021 baseline is how you calibrate expectations of the competition you are actually facing today.

Why the CAT 2021 Cohort Size Matters as a Reference Point

The CAT 2021 appearance count is not just a historical trivia number. It is the statistical baseline that post-pandemic CAT growth gets measured against. When coaching institutes, media reports, and aspirant forums say "CAT registrations are up" or "competition is getting tougher", the comparison is almost always back to the CAT 2021 cohort. Knowing the 2021 numbers precisely is therefore how you know what recent trend language actually means.

Three specific reasons make the CAT 2021 cohort the reference point every CAT 2026 aspirant should internalise:

• Pandemic-era floor. CAT 2021 recorded the lowest appearance count in the current CAT cycle. Every subsequent year's growth is measured from this floor.
• Fresh template start. IIM Ahmedabad introduced the 66-question, 120-minute CBT format that defined CAT through 2023 in this exam, so the cohort size is anchored to the start of the current pattern era.
• Clean data point. IIM Ahmedabad published detailed statistics - registration count, appearance count, gender breakdown, and topper demographics - which makes CAT 2021 unusually well-documented.

CAT 2021 Registered vs Appeared: The Exact Split

The cleanest way to see the CAT 2021 cohort is the registered-versus-appeared split. Around 38,309 candidates registered for CAT 2021 but did not show up on exam day, which is the gap behind the 83.34 percent attendance figure. The bar chart below lays out the full registration-to-appearance flow, with the percentage gap highlighted:

The 38,309-candidate drop-off is a meaningful signal on its own. Typical CAT attrition in pre-pandemic years sat at roughly 10 to 12 percent. The 16.66 percent attrition in CAT 2021 is roughly 40 percent higher than the pre-pandemic norm, which points directly at pandemic-era uncertainty as the main driver. Three specific factors drove the gap:

• Health concerns. November 2021 was still within the Omicron-variant window, and test centres were widely viewed as elevated-risk environments.
• Travel logistics. Inter-state and intra-city travel restrictions were unevenly lifted, which made some test-centre choices impractical in the final week.
• Format unfamiliarity. The compressed 120-minute, 66-question format was only one year old, and many candidates decided the mental model was not ready yet - the CAT 2021 exam pattern was the first time this structure was tested.

The Pandemic Context Behind the CAT 2021 Cohort

Three pandemic-era decisions by IIM Ahmedabad shaped the CAT 2021 cohort shape, and all three deserve to be remembered when you compare 2021 numbers to later years. The first was the duration reduction from the pre-pandemic 180 minutes to 120 minutes, introduced in CAT 2020 and carried into 2021. The second was the compressed question count from 100 to 66, which kept the section-wise difficulty intact but lowered the total mental load. The third was the expansion of test centres across 156 cities, which reduced centre-level density but added logistical complexity for many candidates.

All three decisions were pandemic-response measures, and all three left their imprint on the cohort. The shorter exam and reduced question count made the paper less intimidating, which probably helped first-time CAT aspirants. But the expanded centre network and ongoing COVID-19 waves also made travel unpredictable, which is the most plausible explanation for the elevated registration-to-appearance drop-off. The 2021 cohort is therefore best read as a pandemic-normalised dataset rather than a true measure of serious MBA intent in late 2021.

Demographic Breakdown of CAT 2021 Test-Takers

Among the 1,91,660 candidates who appeared for CAT 2021, the gender and educational-background breakdown reveals the deeper shape of the cohort. IIM Ahmedabad published the gender split officially, and coaching-institute analyses confirmed the engineer-versus-non-engineer distribution. Both visualisations below use the official press-release data:

The gender split of 65 percent male and 35 percent female in CAT 2021 has remained largely stable across CAT cycles since 2019. The two transgender candidates in the 2021 cohort were among the first publicly recorded under the CAT registration form after the category was added in the mid-2010s. The engineering dominance at about 70 percent reflects the broader undergraduate intake pattern in India and the relative over-representation of engineering graduates among MBA aspirants. Non-engineering representation has been rising in the more recent CAT years, with the CAT 2025 cohort seeing 9 of 12 hundred-percentilers coming from non-engineering backgrounds.

The Nine CAT 2021 100 Percentilers: Regional Breakdown

Only nine candidates scored a perfect 100 percentile in CAT 2021 out of the 1,91,660 who appeared, which works out to roughly one per 21,300 test-takers. All nine were male candidates, continuing a four-year streak from 2018 through 2021 where every 100 percentile scorer was a man. Seven of the nine were engineering graduates and two came from non-engineering backgrounds. The regional breakdown is worth recording because it previews a pattern that continued into subsequent CAT cycles:

Maharashtra produced four of the nine CAT 2021 toppers, a pattern that reflects both the dense engineering and commerce graduate pool in Pune and Mumbai and the presence of long-running coaching ecosystems in the state. Uttar Pradesh contributed two toppers, driven primarily by IIT-adjacent cities like Kanpur and Varanasi. The single toppers from Haryana, Telangana, and West Bengal point to the growing regional spread of CAT-serious preparation. This regional concentration in western and northern metros, with the southern belt contributing increasingly, has continued through CAT 2024 and CAT 2025. The paper these 9 toppers sat was the 66-question, 120-minute CBT format that held through CAT 2023 before the CAT 2024 template break expanded the paper to 68 questions.

From CAT 2021 to CAT 2025: How the Cohort Has Grown

The CAT 2021 baseline becomes most useful when you place it next to the subsequent four years. The bars below show the appearance count trajectory from CAT 2021 through CAT 2025, with CAT 2021 marked as the baseline year:

Three trajectory patterns emerge from the five-year arc:

• Sharp rebound 2021 to 2023. Appearance counts grew by more than 50 percent as pandemic normalisation ended.
• Plateau at 2024 peak. 2.93 lakh appeared candidates in CAT 2024 marked the high-water mark of the post-pandemic recovery.
• Unexpected contraction in CAT 2025. A drop to 2.58 lakh appeared - still 34.6 percent above the 2021 baseline but the first year-on-year decline in the cycle, decoded in the CAT 2025 exam pattern read.

For CAT 2026 aspirants planning against competition density, the correct read is that the cohort is settling in the 2.5-to-2.9 lakh band rather than continuing to grow indefinitely. The CAT 2021 baseline remains useful as the lower anchor, while CAT 2024 sits as the upper anchor. Your CAT 2026 preparation roadmap should assume roughly 2.7 to 2.9 lakh fellow candidates on test day, not the outdated 2021 figure.

What the 2021 Baseline Means for CAT 2026 Preparation

Translating the CAT 2021 cohort data into CAT 2026 preparation signals is where the numbers become useful. The most actionable lessons from reading the 2021 baseline alongside subsequent years are less about raw size and more about what the growth trajectory implies for competition structure at the top of the distribution:

1. Top-of-distribution crunch is real. The 9 hundred-percentilers of CAT 2021 grew to 14 in CAT 2024 and settled at 12 in CAT 2025. The top band is getting more competitive year-on-year, not less.
2. Attendance is stabilising high. Post-pandemic attendance has moved from 83.34% in 2021 to 87-89% in later years. Registered candidates are now more likely to appear, which tightens the real competition.
3. Non-engineer representation is rising. From 2 of 9 at CAT 2021 to 9 of 12 at CAT 2025, non-engineers now dominate the top of the distribution. This favours a non-engineer-tuned preparation strategy for CAT 2026 aspirants from arts, commerce, and science backgrounds.
4. Regional spread is widening. Maharashtra dominance at the top is slowly moderating as southern and northern regional metros contribute more 100-percentile candidates.
5. Registration-to-appearance gap is closing. The 16.66% drop-off in 2021 has narrowed to roughly 12-13% by 2025. Committed aspirants are now the norm, not the exception.

Most CAT aspirants do not have a data problem. They have a reference-point problem. The right baseline year, paired with a clear read of the trajectory since then, is what turns raw cohort statistics into useful preparation input. Clarity first. Then effort.

Optima Learn Editorial Team

CAT preparation · Research-led editorial

Optima Learn builds clarity-led CAT preparation systems. Our editorial team compiles official IIM press releases, cohort statistics, and historical paper analyses to give CAT 2026 aspirants precise reference-point data. The CAT 2021 statistics in this piece draw on the IIM Ahmedabad official media release and coaching-institute cohort analyses from TIME, IMS, 2IIM, and Career Launcher.