CAT

As such you will get a college on the basis of percentile, so it would be difficult to say what score can help you to get a good college. Much of it will depend on your competitors.

Hello Rohini,
There are several coaching institutes for the CAT and all but I will suggest you to go for TIME as they have the best faculty and facilities.
All the best.

Yes, in all sections you can use VC.

Hello Hridyesh,
Yes, you can get admission in this institute through MAT.

Any good MBA college accepts CAT/any other MBA entrance exam score. It is better to apply through CAT score. You can prepare well for CAT and other entrance exams. A score around 80+ percentile in CAT is good enough to get into a decent B-School. For direct admissions, you can check with the respective college's administration you are looking for.

Hello Saskhi, always hope for the best. I will suggest you to prepare in that manner such that that your percentile does not drop down below 90 and like that you could get the best colleges through CAT.
Wish you all the best.

Sorry, but it will be difficult. As percentages play an important role. But, you can try for top 100 B-Schools and make a career in your dream branch.