B.Sc

Entrance Exams are norms now and they are everywhere. Some colleges require minimum marks in class 12th. If you qualify for the criteria, then you are eligible for appearing in their entrance examination.

You can check out the options given in the link https://www.shiksha.com/science/colleges/b-sc-biotechnology-colleges-delhi-ncr. This link contains list of all the private college in Delhi and Noida for your desired subject.

Engineering in what exactly? Engineering has many branches and all are very different from each other. So, it is hard to tell exactly what is better or the worst. As for B.Sc in interior design, it is a professional course and it can be very good if you do it from a good college. Same goes for B.Tec

It is completely other side of the river. Commerce student can't pursue Bachelors in Science in any subject as in physics chemistry biology. It became very difficult for you and you cannot cope up with Science. So it is better that you opt for your own line commerce and don't waste that 2year study

Hope this link helps you: https://www.google.co.in/amp/s/www.shiksha.com/science/course/amp/b-sc-hons-in-physics-panjab-university-chandigarh-271794?espv=1.

Don't know about Loyola College, but the common eligibility is as follows and may help you.
B.Sc. Physics Eligibility1. 10+2 completed from a recognized educational board
2. 10+2 must be completed in Science Stream
3. Physics, Chemistry, Mathematics/Biology, English are compulsory

Hello Sushan ,
This link will help you :
http://www.picassocollege.com/picasso-all-courses.html

KCET 2018 College Predictor
Use your KCET 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack.
The result is based on admissions data of KCET 2017.
Get resources & insights on colleges & courses.
https://www.shiksha.com/b-tech/resource