Respected Sir,

there is a totally different system for getting into shastra college. They also include your board marks into calculating the cut off

JEE Main 2018 and normalized 10+2 scores will be taken together for admission under stream 1 in which 70% of seat are filled. The scores of JEE Main will carry 25% weightage and 10+2 scores will carry 75% weightage.The combined scores will be used to prepare the rank list and candidates will be invited for admission on the basis of the rank list.

There is a other stream by which 30% of seats are taken . In it, candidates will be considered for admission based on their normalised aggregate 10+2 or any equivalent exam scores.