CAT

Yes, you will get a call from IIM but not from the top ones, since they need 99 percentile.

Any score of 99.6+ is good with that profile for IIM, Ahmedabad.
All the best. I hope you get that score.

Top 5 MBA colleges in India that do not require CAT score are:
IILM -Institute for Higher Education, New Delhi.
Symbiosis Institute Business Management (SIBM), Pune. SVKM's NMIMS, Mumbai.
IIFT: Indian Institute Foreign Trade, New Delhi.
XLRI: Xavier Institute of Management, Jamshedpur.

Some schools accept gap years, but for appearing in an interview, more weightage is given to the work experience. Some candidates prepare for this exams along with their respective jobs. So, that's why most of the big firms don't consider this gap year for preparation as a valid reason.

Hi Goutam,
Generally, CAT score cutoff will be above 60 percentile and MAT will be 80 percentile or 90 percentile.

Yes, you have to take the original copies with you for the security reason, but remember to keep them safe till you get back.

Yes, you can start the preparation for CAT. First check out the syllabus and pattern of CAT exam. Start brushing up the concepts of Maths and English (Grammar). You can sit for CAT exam in your pre-final and final years of graduation. Apart from scoring well in CAT. You must need to score well in graduation. Check out the selection criteria of top-20 MBA institutes of India. This will give you a good idea what are the expectations of institutes from MBA aspirants. Best of Luck.

NIRMA institute accepts CAT score. A score around 85-90 percentile is good enough to get into NIRMA. Check the below link for more information on MBA admissions in NIRMA -
https://www.shiksha.com/college/institute-of-management-nirma-university-gota-Ahmedabad-3029.

Nirma University is better than O P Jindal for Marketing. You can apply through CAT. The highest package as per 2015-16 was INR. 16 Lacs average package was INR. 8.10 Lacs and median package was INR. 8 Lacs.

Yes, you can get admission in a good B. School with a good CAT/MAT/XAT score. If you get Minimum 75 percentile in CAT and Minimum 500 composite score in MAT, you can get admission in MBA in a good B. School. Amity University-Haryana is a good option with these eligibility scores; though you will have to crack our GD/PI round for the selection in the university.