Hello Aspirant!!

Admissions in Sastra University is based upon 2 categories.

1st category: 85% of total seats are filled upon by the JEE mains marks and the 12th marks.

2nd category: Remaining 15% of the seats are filled only based upon the marks secured in the 12th grade or PUC or intermediate 2nd year or any other equivalent boards.

You have secured 87%, a decent percentage in 12th std. But you didn't mention whether you have written JEE exam or not.

So, you can claim a seat in category 2 , but only 15% of the seats are filled through it. If luck praises you, you can also get a seat through category 2.

There are slightly less chances for getting a seat through category 2. If you have written JEE MAINS, you can opt a seat through category 1 also.

https://www.google.com/amp/s/engineering.careers360.com/articles/sastra-university-btech-eligibility-criteria/amp

Check out the link for your further references.

And you also use the college predictor to predict your college according to your percentile, if you have attempted JEE mains exam

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna

Hope this helps you a lot!

Best of luck!