CBSE 12th

For Science students go to Biotechnology, Microbiology, Clinical Science for Commerce, go for BBA with finance and for Students having Maths with Science go to for B.Tech Remote Sensing.

Scholarship is given by the state/central government for meritorious students according to their profile. Some scholarships are given to SC/ST/OBC students for financial help. You need to clear all semester in first division with good marks so you can get scholarship from your college/ university/ government. Your profile is satisfactory for scholarship.

You can get a call from Welingkar as the cut-off for this college is 90.

You can take interior designing or fashion designing course after your class 11th and 12th commerce because, the stream does not matter to pursue any designing degree. Candidates must have an interest in and a flair for art and design. There is a number of designing colleges, from where you can pursue a degree in designing course. Here I am listing some best fashion designing colleges in India:
1. School Of Fashion Technology
2. Indian Institute of Art & Design (IIAD)
3. Vogue Institute of Fashion Technology
4. International Institute of Fashion Design (INIFD)
5. Arch Academy of Design
6. NID (National Institute of Design)

Yes, you can write CAT but I doubt your call from the old IIMs.

Dear friend, you can get admission without maths also but in this case you have to lose 2.5% of your best four subject and if after this deduction you lie in the cutoff you are eligible.
All the best!

Find the information here:
https://www.shiksha.com/design/communication-design/exams/amp/nid-entrance-exam

No, there is no sports quota as such.

Yes, you can get NMIT but not the desired branch.