Colleges in Ahmedabad

You may refer to the following link for a list of automobile engineering colleges in Ahmedabad:
https://www.shiksha.com/b-tech/colleges/b-tech-in-automobile-engineering-colleges-ahmedabad

Yes, Oakbrook Business School is AICTE approved and GTU affiliated.

NID is a design school. You can choose any stream as designing has no boundaries. If you choose fine arts as an optional subject in school, it will help in learning the creative parts of designing. But it's ok even if you don't know fine arts.

As of now, renaissance is over. I am sorry for not responding to your question on time.

There are sample papers and books available especially for NID entrance exam you can read those or you can take couching from different designing couching centers.
Learn all the brand labels, brand logos, recent and past designers and brand achievements, learn about different fashion show that when its happen at what day or month plus which fashion show is held where. Learn about different fashion seasons.