During the time after CAT, you should do the following to convert calls from good B-Schools.
Also, do intensive research about the colleges that you are applying to. Talk to the current student and alumni to know about the real scenario on campus.
After taking the CAT, you can keep the flow and appear in other exams like SNAP, IIFT or XAT, and prepare for them. Also keep in mind that you will have to sit for the GD-PI processes of all the colleges you have applied for.
Here are some suggestions:
Lastly, try to give yourself some space also from the regular preparation process. Read a story book, indulge in some hobbies, etc. to take your mind off the monotony.