I have no idea about cut off because ICAR not reveal marks , they only show your ranks.

But from previous year (2017) whole process become online thats why ICAR show marks and rank both . At 400 marks you can get a good rank approx under 700 rank in general. It may vary every year depend upon question difficulty and Number of candidate.

But I want to share my experience that help you in analyzing the cut off.

ICAR UG EXAM 2015:-

NUMBER OF QUES ATTEMPTED =163 OUT OF 180(60 QUES EACH IN MATHS, PHYSICS AND CHEMISTRY)

NUMBER OF RIGHT ANSWER ON WHICH I HAVE FULL CONFIDENCE =APPROX 145 TO 150( i.e 575 to 600 marks)

RANK I GOT =251 GENERAL CATEGORY, 100 OBC category.

I you have any query about counselling procedure, about preparation technique, best college. Then freely message me .