Colleges in Tamil Nadu

No, it is not possible for you to get admission in Anna University, as the competition would be really heavy. And, the TN state board students have around 96-99% in PCM. So, it is really difficult for you to get admission.

Hi,The tuition fee per annum will be around INR. 1,85,000 and you need to pay additionally, if you require transport or hostel facilities. If your rank is good, then this will be the fee but if your rank is more, then you need to pay more based on categories of admission.

https://www.shiksha.com/university/devi-ahilya-vishwavidyalaya/davv-cet-exam
I hope it will help you.
Good luck.

You need to score more than 280 marks in order to get Aerospace in any of the IITs.

Yes, You can get a seat in sastra with your 12th marks and JEE percentile. You can get admission in branches like ECE, EEE, Mech and other branches.

VIT is the best college in all the colleges you have mentioned above as this college is best in terms of placements and also this college has the best faculty in comparison of all these colleges.

What is your boards percentage?

There is just biomedical course offered in VIT. To know the UG courses offered by all the campus, refer the link
http://www.vit.ac.in/admissions/ug

It is okay to have father's name on DD. But, don't forget to write your name behind the DD while counselling.

Father's name is okay. Behind the DD, kindly write your name and your admission or registration number.