Hello! Hope you are doing well. Firstly, congratulations for your score in both boards and jee mains. According to the points you have given your score is approximately 93.3%. And with your percentages in boards and mains, your predicted rank for overall jee mains will be around 62385 - 69885. You can also check it in the given link:

"https://engineering.careers360.com/jee-main-rank-predictor".

And to know the eligibility criteria to get into sastra you can use the given link "https://engineering.careers360.com/articles/sastra-btech-admission".

Hope this information is useful to you. Good luck!