How should I prepare LRDI for CAT?

Of late, many people have requested me to write an article on “How should I prepare LRDI for CAT” just like I did for Quant and VARC. So, based on these multiple requests, I have tried to recall my CAT preparation days and share my experience of LRDI preparation. But let me outrightly tell you that LRDI was my weakest section, and I formidably dreaded it. However, with a consistent effort, I could manage to score reasonably well in it.

So, what I am sharing in this article is how I approached the LRDI preparation. There is nothing good or bad about it. It worked for me. It may or may not work for you, but this article can give you some direction. So, you may read along.

Generally, there is a reluctance among aspirants to kickstart LRDI. I think it is because LRDI questions are lengthy as compared to Quant questions. Nonetheless, the first step is to take that pain to start practising LRDI. It is because the LRDI section has been very unpredictable in the last few years. So now, it is all about practising and getting exposure to as many question types as possible.


Pre-requisite for LRDI:

I feel before you start your LRDI, you should be comfortable with the Arithmetic syllabus of the CAT exam. Concepts like Ratio and Proportion, Average, Percentage, and a few others are rigorously used in the questions of LRDI. So, before you start LRDI, get comfortable with these topics of Arithmetic.

How to kickstart LRDI preparation?

The first step is to cover the basics. For this, you can take the booklets of any coaching material and start solving topics in a sequence. While practising the questions from the coaching material, you might feel that those are not of the CAT level. It is true. But the purpose of solving those questions is only to make you comfortable with the basics. In the CAT LRDI, such sets won’t be asked directly, but the concepts of those sets will be used in solving a more complex puzzle. So, it is imperative to know the basics so that you can decode the complex question easily.

And yes, I generally don’t prefer any book because I feel those are very exhaustive for the basics. You mainly learn through mocks and their analysis, so I feel we should cover the basics and then start practising from previous years’ mocks. Those questions are of the exact CAT level, unlike the sets of other books.

 What sequence of topics should I follow?

This is a frequently asked question. So, I am sharing here the sequence of topics that I followed. I referred to the TIME material, so I primarily followed that sequence only.


  1. Linear Arrangement
  2. Circular Arrangement
  3. Double Line up/Distribution
  4. Selections
  5. Ordering and Sequence
  6. Binary Logic (Truth-teller, Lier and Alternator)
  7. Venn Diagrams
  8. Routes and Networks
  9. Logical Deductions
  10. Cubes


  1. Tables
  2. Bar Graphs
  3. Pie Charts
  4. Line Graphs
  5. Games and Tournaments

I have listed major topics. Some might be missing in this.

The Second-step:

Once you have covered your basics, now all you need to do is practise CAT level questions. For this, you can make use of the following resources.

  1. Previous years’ AIMCATs and SIMCATs: If you don’t have these, you can ask for these on various social media platforms like iQuanta on Facebook. You should practise 2-4 sets daily from these tests. This will help you reinforce your concepts.
  2. Previous years’ CAT papers: Do the same as above.

The Third-step: Mocks, mocks, and mocks

If you have read my other articles, you would have known by now how important the mocks are. Your main learning and confidence gain will happen through mocks only. Take as many sectionals and mocks as you can. Just a caveat. Don’t take another mock without analyzing the previous mock. If you do so, you won’t learn anything.


For this, you can pick sets from multiple sources like social media groups, WhatsApp groups, YouTube channels, or any other online resource. Doing random questions help us recall our basic concepts. And I feel this is the best way of revising.

What should I do if I find any particular topic tough?

This is again a very frequently asked question. Aspirants say that they find it boring to again solve the same topic again from the same source. Yes, it can be boring. In this case, you can try to learn the topic from scratch from some different sources. For LRDI, I used to solve 1-2 sets daily from the Elites Grid YouTube channel for a particular topic. You can follow that. It helped me. It might help you as well.

The basic idea is to explore topics of difficulty on the internet and learn from different sources. This will help you get multiple approaches for a particular set or topic, which is always beneficial. 

Final words:

There is no shortcut in LRDI. The key is to practice as many question-types as you can so that you find LRDI mocks less surprising. If you do not succeed in faring well in LRDI, it is only because of lack of sufficient practice, and that sufficient practice may vary from person to person. Some are naturally good in LRDI, so for them, not much practice is required. But for someone like me who finds LRDI dreadful, a consistent effort over a period is required to feel comfortable with this section.

Read: How Should I Prepare VARC For CAT?

Free online sources for CAT preparation:

  1. Elitesgrid Youtube videos for LRDI
  2. iQuanta group on Facebook for CAT preparation, doubt-solving, and peer-learning
  3. 2iim CAT preparation group on Facebook
  4. Takshzilla videos for Quant (not all videos available for free anymore)

Related articles:

  1. How Should I Prepare For The CAT Exam?
  2. What Are The Best Books For Cat Preparation?

  3. How Should I Prepare Quant For CAT?

  4. My Maths Is Weak, How Should I Prepare Quant For CAT Exam?

  5. How Do I Develop The Reading Habit?

  6. How Should I Prepare VARC For CAT?
  7. Which Is Better – Online Coaching Or Offline Coaching?

  8. Which Is The Best Mock Test Series For CAT? Can I Predict My CAT Percentile From Mock Test Results?

  9. What Strategy Should I Follow In CAT Mocks?

  10. How To Do CAT Mock Analysis?

  11. Why Do Students Fail In CAT?

  12. Which All Top B-Schools Give Very Less Or No Weight For Academic Scores?

If you have any query, feel free to reach out to me.
You can expect a reply within 24 hours.

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