Interior Design

This is one of the most crucial point in anyone's life when he/she has to choose a stream in 11th standard and this decision should be made very reasonably and practically. You want to pursue interior designing as your career and for this your are confuse whether to opt for Science or not, I suggest

No, there is no entrance exam. The selection in all the Diploma and Master Diploma programs will be walk in based, you can directly apply at the college.

Yes. Normally, it is possible if you are opting same interior field.

Yes, you can go Online Certificate course in Interior designing from Rapidskillz along with your B.Com, Rapidskillz offer govt approved courses and this Interior Certificate will be approved by govt too.

The fees are not mentioned on the website. You can write a mail to the authorities or you can visit the campus for more information.

Bachelors is a better option, as it has more scope and credibility.

Yes, you can do this course from any institute in your city.
But if you want to do it from a particular institute you have to fallow their criteria of admission.
Here is the list of top interior designing colleges.
https://www.shiksha.com/design/interior-design/colleges/colleges-india
Top fashion design

Yes, of course. You can apply for the same. Before join it, do a computer course related to it. Good luck.