Hello Baddi harika

First of all there is no specific cut-off marks for getting admission in sastra university. Your 12th marks and jee marks will decide your seat in sastra university. The merit is made based on 25% weightage of JEEmarks And 75% of your class 12th marks. So as you have calculated then your marks are good and their are some chances that you get stream 1 in good branches. You do have a good chance, go for it.

Hope you find it useful.