VIT Vellore

Yes,
You need an aggregate of 70% to clear the cutoff. So, you are eligible. The number of seats keep changing so that wouldn't be known. But, I guess you should be able to get admission.

B.Sc degree in either Chemistry or Applied Chemistry or Applied Science from any recognized university with Physics or Mathematics/ B. Pharm (or) Biology/ Botany/Zoology as ancillary subjects with 50% of marks (Inclusive of all subjects).

Yes you can get admission in Vellore or Chennai. But, you won't get CSE in Vellore, and if you do get it in Chennai, it will in category 4 mostly. You can get courses in Chennai campus like EEE, ECM or Civil.

Hi,
It will all depend upon your CET score now.
All the best.

Yes, you can get the admission. Your PCM score enough for it.

For CSE branch my order of preference would be firstly I would recommend Vellore then 2nd will be SV and the last will be Andhra University. Give me upvote and comment.

So I believe in terms of education both VIT Chennai and Vellore impart the same. However, Chennai has a better student to faculty ratio and so you would have more opportunities to do something rather than just get lost in the crowd. Placements are joint so that won't be an issue. Generally when people decide between Vellore and Chennai with a branch like ECE it comes down to:
Vellore is a bigger campus and has grander fests. Chennai is a metro city and has better facilities. Rest assured the VIT Brand name will be evident in both the campus.

It's a new course. Check out the official website.
the fees are 1.73 lpa.

M.Sc. doesn't guarantee any placement. However, you'll have a decent base to go for Ph.D abroad.

Yes you do. Apply for it.