Interior Design

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 designing colleges.
https://www.shiksha.com/design/fashion-design/ranking/top-fashion-design-colleges-in-india/94-2-0-0-0

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

I hope this link will help you
https://www.shiksha.com/design/interior-design/colleges/diploma-courses-india.

You can get the list of college by given link:
https://www.shiksha.com/design/interior-design/colleges/b-sc-colleges-Mumbai-all.

Please follow given link
https://www.shiksha.com/design/interior-design/colleges/colleges-Bangalore.

Top 10 Interior Design Colleges in India
National Institute of Design (NID) Location: Delhi. Sai School of Interior Design. Location: New Delhi. Sir JJ School of Art. Location: Mumbai. Arch Academy of Design. Location: Jaipur. IILM School of Design. Location: Gurgaon. Vogue Institute of Fashion Technology. CEPT University. Shri Devi College of Interior Designing.