Will cut off of bits 2018 will decrese due to increase in seats and lesser no of students scoring above 300 in 2018 as comp to 2017,2016,15
We can't predict whether it can decrease / increase because since it is a private institution the scenario will be change suddenly in a year and after that you have to suffer it , if you can't able to score up to the mark. So better to follow the previous year cuttoff list and if the cuttoff will decrease then it may purely aid the student's like you.
Good luck