Hello Ravi!

In Sastra university,  the admission are conducted on the basis of two stream.

First is where they include jee mains and 12 class score. The ratio of score  jee mains to 12 class is 30% to 70%. The addition of score of jee mains and class 12 is done and then the students are ranked accordingly. This scheme is only for 70% of the total seats.

Second is where they consider only 12 class marks for the left over 30% of the seats.

Good luck!