Colleges in Gujarat

See if you are really serious about your career in management then I would suggest you to focus on your study and not on job right now. As when you involved in job then it will be little tough to change to your study and you may face some gap year for regular college. I would recommend you to go for CAT and also there are some good colleges which you must see to get what you need. Visit MICA at Ahmedabad - https://www.mica.ac.in/ website through the link provided and get to know about the college.

To get admission in Ahmedabad, I would suggest you to go for MICA which is one of the top college to fulfill your requirement. It may not be on the 2nd number but will meet your expectations. I am listing the college link to get better idea of the college and the courses offered.
Link: https://www.mica.ac.in/.

85-90 percentile would be enough for a call I guess.

It depends a lot on your complete profile, your academic background etc. Its difficult to annotate a number without any information about you.

You should opt for NID if you want to pursue car designing.

A lot depends on where you want to be. The Maharaja Sayajirao University of Baroda is a well-established institution and has an amazing infrastructure to show it. The faculty is good too. Placements might be a thing they lack at. For queries regarding the Maharaja Sayajirao University of Baroda visit goo.gl/w7Eh5x