Which is the best academy to take cat coaching in India, both online and offline...
But if you don't want to invest such a huge amount of money you can study from various books available in market like Arun Sharma and Sarvesh Verma for quantitative aptitude and magazines like The Economist and TIME and TOI newspaper for the English portion. Along with that do buy the mock test series from the above Institutes which will give you a good knowledge of all the kinds of questions generally asked in CAT,XAT or other exams.
All the very best
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