Hello aspirant,
I am here for helping you.
You wanted to know about how to calculate cutoff marks for BE engineering . For which you will have to follow following given steps:
1: divide maths marks by 2
2: divide physics marks by 4
3: divide chemistry marks by 4
4: add all of these three results  and you will get final cutoff marks for engineering.
For more detail you can go on the link which I am providing you below:
"for more details click on me"
I hope it will help you..
For more queries you can upvote me and can ask in the comment box.
Best of luck.

For be Civil engineering