Design Entrance Exam

Make sure, when you are going for situation test you must carry:
Call letter of situation test and admit card of written examination. Carry a good pair of scissors (sharp). Your scissors should be big one. Do not carry too small scissor. Paper cutter (with sharp blade) or craft knife
Cello tape (Should be wide 1520 mm and has good adhesive. Prefer Scotch magic tape. )
Carry blue/black dot pen and gel pen. Fevicol (do not carry any cheap glue as they are less sticky).
12 inch ruler steel/acrylic. Pencil/eraser/sharpener.
Stapler.

Yes, you have to appear for entrance exam because it's a national level course and without entrance you are not eligible for the admission.

Please follow the links. https://www.shiksha.com/college/indian-institute-of-art-and-design/exams/iiad-entrance-exam/question-papers
https://www.shiksha.com/design/industrial-product-design/exams/ceed/question-papers
https://www.shiksha.com/design/industrial-product-design/articles/ceed-mock-test-sample-questions-with-answers-blogId-11716
https://www.shiksha.com/design/communication-design/exams/nid-entrance-exam/question-papers.

Please click below. https://www.shiksha.com/design/communication-design/nid-entrance-exam-question-papers.

Yes, you can go for NIFT. It has nothing to do weather you are from commerce or any other.
Forms are still available go for it and prepare for the entrance exam. For more details go for the Prospectus of NIFT.
All the best.

Kindly click the link below:
https://www.shiksha.com/design/communication-design/nid-entrance-exam-question-papers.

NID Entrance Exam is all about common sense, General Knowledge and spontaneous thinking.

You can get online exam sample papers through NID site. BRDS Ahmedabad also provides practice material along with sample papers, by post in Rs. 5000.