Hello aspirant,

Hope you're doing well.

CAT ( Common admission test) is the exam organized for admission to various business schools in India. The IIMs, IITs, NMIMS, FMS, and many, many other management institutions take in admissions for the 2 year full time programme.

You should refer to Various DI( Data interpretation), Logical reasoning, (verbal and nonverbal), quantitative aptitude and english from various books written specifically for CAT - Arun sharma, RS aggarwal, etc.

There are various youtube channels for quantitative aptitude which are doing so great in educating various aspirants. It's just a click away. You can just search about it. There are various apps like unacademy, and many others with are ideal for cat preparation.

All the best.