What are the recommended resources to practice DILR for CAT?
DILR preparation comes down to one habit: solving unfamiliar sets daily, then reviewing every decision you made. No video lecture replaces that loop.
Aspirants who crack 99+ percentile in DILR consistently report spending 70% of their prep time solving and 30% reviewing, not watching.
Why DILR Is Different
DILR does not reward theory. The CAT paper, especially post-2015, throws hybrid puzzles that combine scheduling logic with network diagrams, or seating arrangements with conditional constraints.
You cannot "study" your way past that. You can only pattern-match your way through it by having seen enough diverse set-types under timed pressure.
Daily Practice Resources
Cracku remains the most cited free platform for weekday sets. Its daily DILR exercises mirror CAT difficulty reasonably well and build solving speed over weeks. Oliveboard's sectional tests and IMS Learning Resources add variety when Cracku sets start feeling repetitive.
For paid options, these two are worth the money
- Career Launcher's DI-LR 1000: high volume, good difficulty spread across fundmental and advanced sets
- Arun Sharma's How to Prepare for Data Interpretation for CAT: covers bar graphs, pie charts, Venn diagrams, and seating arrangements, though real CAT sets tend to be harder and more twisted than what Sharma presents
Mock Ecosystem and Analysis
Full-length mocks anchor weekends. The four platforms worth using are TIME (AIMCATs), IMS (SIMCATs), CL, and Cracku, roughly in that order for DILR difficulty calibration. AIMCATs and SIMCATs come closest to actual CAT complexity.
Mock analysis matters far more than mock volume. After each test, spend 90 minutes reviewing every DILR set, including ones you skipped.
The question to answer each time: could you have identified this set as solvable within the first two minutes?
| Resource | Type | Best Use |
|---|---|---|
| Cracku Daily Sets | Free, online | Weekday consistency |
| AIMCATs (TIME) | Paid, full mock | Weekend simulation |
| SIMCATs (IMS) | Paid, full mock | Difficulty calibration |
| CL DI-LR 1000 | Paid, book | Pattern variety |
| Arun Sharma DI | Paid, book | Foundational set-types |
CAT Official Papers and Set Selection
CAT official question papers from 2017 onwards are the single best resource available. Solve them under strict timed conditions.
They reveal exactly how IIM-Bangalore and the other convening IIMs frame ambiguity, how much data is deliberately excess, and which set-types appear repeatedly across years.
The selection skill, knowing which three sets to attempt in 40 minutes, is what separates 85th percentile from 99th. Reddit AMAs with toppers confirm a consistent pattern: attempt only 12-15 questions, but maintain 95%+ accuracy.
They skip brutal sets within two minutes and commit fully to solvable ones. That discipline comes from mock practice, not from reading strategy guides.
This path is genuinely hard. There is no shortcut to pattern recognition; it accumulates over months of daily reps. If you start four weeks before CAT expecting mocks alone to carry you, they won't.
Pro Tip: After every mock, pull out the one DILR set you misread or misjudged and rebuild it from scratch the next morning without the answer key, this single habit accelerates set-reading speed faster than any other drill.