MBA Entrance Exam

It depends on the stream you are choosing as in case of finance, for core finance jobs MNCs demand 55-60% in graduation to attempt job interview, but there is less restriction of percentage criteria in marketing jobs.
You should rely on shiksha's college reviews, not on any 'free admission agency'.

It is better to be sure with 80-90 CAT percentile before huge investment and bank loan burden. As colleges generally show you the CTC salary of a placed student, which is not in hand because CTC (cost to company) includes TA, DA, LTC, mediclaim and insurance.

Hi,
IIFT is one of the top institutes / universities in India in the area of international business. SIIB has a good brand image. So, we can consider it after IIFT and then DIMR. I hope I am clear.

PGDM - Rs 3, 60,000 per year (including formal suit, fee for peregrine evaluation, and industry visits).
Average placement is Rs 4.7 lakhs per annum.
Generally, if you get 70 percentile or more in any of the tests, you get a call for GD/PI. Your selection depends on your performance for the same.

You can apply in BIMTECH as the minimum percentile required is 70. It can provides you sustainable job with good salary. You should be updated with current financial news and market news to crack PI.
Good luck.

Yes, you can go for Marketing stream. You must choose the stream in which you have interest. Marketing do have good future scope in the field of Market Research, Digital Marketing and Retail Marketing. You can very well opt for that.

Chances seem less at this score, the cutoff is above 75-percentile.
https://www.shiksha.com/mba/course/master-of-business-administration-faculty-of-management-studies-baroda-fms-baroda-vadodara-112403

You need to appear for NMAT and have valid decent score in HSC examination to join 5 year integrated program viz. B.Tech+ MBA or B.Pharm+ MBA offered by Mukesh Patels NMIMS.

You may refer to following link for list of top MBA B-Schools which accept XAT score: https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-xat/2-2-0-0-309.
In addition you can appear for IIFT or IRMA exam to join these B-Schools. You can appear in SNAP of NMAT which will help you to get admission in their top B-Schools.

There is no college bias in IIM selection. Selection is purely based on meritocracy. If you crack CAT and do well in GDPI you stand fair chances to get selected in IIMs.