Delhi

You may get into Faculty of Architecture & Ekistics, Jamia Milia Islamia for B.Arch.

Jamia Hamdard University and AIIMS-All India Institute of Medical Sciences are the best to pursue BUMS.

Yes, you can take admission BBA with 58% in 12th. As per the fess structure of different institute it may vary from INR 30,000/- per year to 80,000/- per year.

Hi Sanjeev,
Please check private colleges basis your grades and requirements. Refer to this list and filter out your options:
https://www.shiksha.com/science/bsc-chp8

Hi,
Please take a look at this link for colleges:
https://www.shiksha.com/science/colleges/m-sc-mathematics-colleges-delhi-ncr

Hi,
Kindly check this list for colleges of M.Sc in botany.
https://www.shiksha.com/science/colleges/m-sc-botany-colleges-india
You need to consult with the college authorities specifically for admission process as it will be really difficult to get into colleges without any entrance especially in top colleges.

You should look at final placement reports of various colleges where companies that offer a role in UAE may be coming for recruitment. You can also look for companies where there is a high probability that you might be shifted to UAE after some work experience. After this, you will be able to target the colleges of your choice.

The OBC CAT cutoff for MBA in IIM Indore is 80 percentile. You can check sectional cutoffs for it as well here: http://www.iimidr.ac.in/academic-programmes/post-graduate-program-in-management/pgp-indore-admissions-details/
For other MBA colleges you can check this detail on their website.