CAT Preparation

Yes you can, there are online coaching available so look for classes from Byju's, Mbaguru etc.

You may go for CAT using Career Launcher's study material, and appear its test series too.
it is much good enough.

Don't go for coachings they loot you without anything self study is best buy the online and offline materials of course as they are helpful.
Start solving English aptitude
Think about data interpretation
Try and solve them
For Quant I suggest solve the entire 10th syllabus and and don't mug up tricks but try to derive them on your own
Aur haa for logical get arihant and s chand
Stay blessed

With closed eyes, go for TIME. It is the best Management Entrance preparation institute in India. Best of luck !

No go for CL test.

For CAT, TIME is the best Management Entrance preparation institute in India. With closed eyes, go for TIME.

Start preparing for CAT in your degree years. Now just stay focused on 12th. Best of luck !

It depends on your goals entirely, if you are looking for high salary placements, you must get admission to one of the IIMS, XLRI, IBS or FM'S and for that CAT high percentile is important. If you can manage well join some job and study hard for CAT as well. This will add up to your work experience. You may also apply abroad if its feasible.
All the best

don't do that.how can u study all in one time!!!Remember B.tech is not a nursury ryhem classe's course.u ll eligible after 3rd year competition of B.Tech to apply in GATE.& after B.Tech u ll eligible for CAT.& yes u have to study well in B.Tech bcoz all the questions in GATE are belongs to B.Tech.best of luck