Hello Ankush,

The answer for your question is yes, you can prepare for cat and write it now the thing which is in your hands is that you have to get a really good percentile in your cat exam as many colleges like FMS also known as faculty of management studies which is a very government college coming under university of delhi give you admission based on your cat exam marks only so I would suggest you to write the exam and get a very good percentile.

I hope my answer have helped you and hope you do well in future.