CAT

It depends on what package you take as its Your ability to cope up with the syllabus. Generally it can be 3 months to 15 months.

Dont know about CAT, but JEE and NATA are the scores accepted by many university, some accept JEE, and some NATA only.

Yes, you are totally eligible. But the CAT exam scores will be accepted for the next year batch if you have appeared CAT this year.

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

Hi Vamsi,
Cut-offs vary year after year, hence I would request you to get in touch with the officials of MICA for any queries regarding the institute.
Please feel free to discuss more.
Wish you luck.

Rajini, CAT is basically for admission to IIMs and top B-Schools in India. GMAT on the other hand is meant for admission to international B-Schools. CAT takes place once a year whereas GMAT takes place 5 times a year. CAT score is valid for the year in which you appeared for the test but GMAT score is valid for 5 years from the year you appeared for. Seeing the global acceptance of GMAT many B-Schools in India too accept its scores.
Keeping above points in mind you can appear for the test of your choice. Also check the universities that accept both.
Good luck.

MBA can have more scope and job opportunities.
All the best

You can give both JEE(main) and NATA as I've done this year only.As there are many institutes like nit's who gives you admission in B.arch on the basis of your JEE(main) rank in paper-2.but most of the colleges and universities see your NATA score so I think you should go for both of them.Sorry ,I don't know about CAT much.