MBA Entrance Exam

There is no official document which states the fact. If you consider for the interview purposes, maybe some people might have a bias. But the interviewers of IIMs are experienced enough to not let these biases affect the decision making.

I will like to share IIM students tips. Go through this once. This is very helpful for me. And definitely helpful to you also.
http://www.mbaonemi.com/articles/entrance-exam/iim-students-share-tips-cracking-cat-exam/

I suggest you write a mock CAT to figure out your strengths and weak areas. Depending on your score you can figure out when to start preparing. Its possible to score well in CAT by preparing rigorously for 4-5 months if your basics are good.
Check this link to know more about CAT :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu

According to me : you should write a mock CAT to figure out your strengths and weak areas. Depending on your score you can figure out when to start preparing. Its possible to score well in CAT by preparing rigorously for 4-5 months if your basics are good.
Know more about CAT at :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu

I would suggest that you write a mock CAT to figure out your strengths and weak areas. Depending on your score you can figure out when to start preparing. Its possible to score well in CAT by preparing rigorously for 4-5 months if your basics are good.
Know more about CAT at :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu

Go for the study material from IMS / TIME / Career Launcher as your first resource.
Or you can consider these books for CAT -
How to prepare for Data Interpretation for the CAT TMH / Arun Sharma
Pearson Guide to Quantitative Aptitude and Data Intrepretation for CAT
by Nishit Sinha
Know more about CAT on :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu

I would recommend that you try out the study material from IMS / TIME / Career Launcher as your first resource.
Some of the Books recommended for CAT are-Quantum CAT by Sarvesh VermaHow to prepare for Data Interpretation for the CAT TMH / Arun SharmaPearson Guide to Quantitative Aptitude and Data Intrepretation for CAT by Nishit Sinha
Best of Luck.
Get to know more about CAT on :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu

In CAT examination - you have 3.5 hours to complete the papers which are related to Mathematics, English – particularly grammar and comprehension more, logical reasoning and data analysis
Some of the Books recommended for CAT are-
1.How to prepare for Data Interpretation for the CAT TMH / Arun Sharma
2.Pearson Guide to Quantitative Aptitude and Data Intrepretation for CAT by Nishit Sinha
3.Quantum CAT by Sarvesh Verma
Get to know more about CAT on :
https://edudrona.com/common-admission-test-cat/#1464927769900-a0617f54-da37/?mref=tanu