Hello Aspirant,

Yes you have decent chances to get a seat in Sastra University. As 70% of seats for admission to Sastra University depends on both the criterias that are the boards marks (75% dependency) and also the JEE mains score (25% dependency). So your percentage is 97.2 in 12th boards. So I'll show you how your final score by sastra university will be calculated.

Your score * 100 / topper score

97.2 * 100 / 98.7 = 98.9(assuming toppers score is 98.7)

Now 98.9 * 0.75 (boards weightage) + 80 * 0.25 (JEE Mains weightage) ~ 94.175

Now this is your final score and at this score there are very high chances that you will get into Sastra University pretty conveniently.

I hope this information helps you.

Good Luck!!