Hello Dear,

It is very difficult to predict the college because you do not mention your category and your state region. But according to you,  you got 97.7 percentile in JEE Mains then your rank would be around 23529 - 26450 .

You can predict rank from the link given below

There is  chance to get admission in Sastra University. And you can also  predict  colleges from the link given

To more information about Sastra University :-

SASTRA University Thanjavur: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

Hope this information helps you...

Best of luck :)