What are the key Do's and Don'ts during CAT preparation?

Yes, there are proven Do's and Don'ts that can save you months of wasted effort. A 99.7%ile scorer shared tactical advice on Reddit AMA that cuts through the noise of coaching institute platitudes. The core insight: CAT rewards disciplined daily execution and ruthless prioritization, not heroic last-minute sprints.

The Three Essential Do's

Work on your weakest section every single day. If VARC drags your composite down, dedicate the first 90 minutes of your study block to RC passages and vocab, even on days when you'd rather grind quant. Consistency compounds. On Reddit AMA, we learnt that the scorer attributed crossing 99%ile to this non-negotiable daily habit, not to binge sessions before mocks.

Cover all topics in Quant, even the obscure ones. CAT 2024 threw Coordinate Geometry and P&C twists that many aspirants had deprioritized. A single unseen topic can cost you 2-3 questions, which at the margin separates a 98%ile call from a 99+ shortlist at IIM Calcutta or FMS. Use a checklist: Arithmetic, Algebra, Geometry, Modern Math, and Number Systems must all show green before you sit the exam.

Use targeted resources for each section. The scorer recommended gmatclub.com for VARC (the RC passages mirror CAT difficulty) and Aptitude Jab for DILR sets. Generic test-series questions often miss the logical leaps that define CAT DILR. If you're mapping out your study calendar, build a CAT prep plan to track topic coverage and mock cadence week by week.

The Three Critical Don'ts

Do not skip DILR PYQs from 2000 to 2008 and 2017 to 2025. On Reddit AMA, we learnt that ignoring the 2000-2008 archive cost the scorer marks in CAT 2024 because those vintage sets teach pattern recognition that newer material doesn't. The 2017-2025 window captures the current difficulty curve. Solve every official set at least twice.

Do not delay PYQ practice until after mocks. Many aspirants burn September and October on theory, then panic in November. Start PYQs by July. They reveal the examiner's question style, which coaching material rarely replicates. Early PYQ exposure also helps you predict your percentile more accurately in September mocks.

Do not waste time solving Parajumbles. The scorer's blunt take: mark a default sequence like 2-1-4-3 and move on. Parajumbles often defy logical reasoning, and the 3-4 minutes you save can be redeployed to a solvable DILR set or two extra quant questions.

ROI matters more than completionism.

Execution Over Perfection

These rules work because they force trade-offs. You can't do everything, so do what statistically moves the percentile needle.

Track your sectional accuracy in mocks, adjust daily focus accordingly, and remember that 98%ile is often just 8-10 more correct attempts than 95%ile. For a full breakdown of CAT exam pattern + dates and how sectional cutoffs play out, check the exam page before you finalize your strategy.