Coimbatore

In my opinion, CSE will be better in terms of scope, placements, and job career. You can get good placements with an average package. The highest package offered is of Rs. 22 Lacs by Amazon and the average offer is of Rs. 3.6 Lacs.

You should wait for CSE, if you are lean towards learning about CSE.

You have to restart again. I mean start from 1st year again.

Hi,
Visit this link to check colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Good Luck. Hope it helps.

You should be in the top 100 in order to get a scholarship in any of the campuses.

Yes, you can get easily. 572 is a good score. You will get a call from both universities as per my experience. Definitely, you will get a call from Amrita. MAT score 500 was also called during my time in 2017. You will surely get a call. Don't worry you will get admission wherever you want. Good Luck.