Ahmedabad

Yes, it is possible, you only have to do some paperwork and then you definitely got the permission.

As mentioned in your question, you can give a shot at NMIMS Bengaluru. However, that is a little costly institute but a decent one. BK School of Management is average. Considering the fact that most of the B-Schools have already started with the 2019 session, you need to look for colleges that are still taking admissions. Else, try for next year.

You can check the last year's cut-off for getting a approximate idea.

Both have good infrastructure, supportive faculty, and good placement, both have a nice environment and very interesting thing is that every month college organize a workshop or any event which student like too much.

Hello Kunal, To compare the two colleges to find out the better one, you may use the comparison tool from the link below :
https://shiksha.com/resources/college-comparison
Since the comparison is based on many factors, it could help you to choose the better one. All the best!

For St. Xavier's college, Ahmedabad, you can apply now and for DAV College, Chandigarh you can apply from 15th June.

With the 10+2 and NATA Score, you can apply in CEPT University. We have All India Seats and you can apply on www.ceptadmissions.in. The UG admissions are open and the last date is 23rd June 2019.