Assuming you are a General Category Candidate, having a somewhat strong academic profile in 10th/12th/Graduation, I would suggest you to target atleast 99.5-99.7 Percentile in CAT, if not more for chances of securing a Call from IIM Bangalore. Incase youre from a Engineering Background, you must target even higher atleast 99.7-99.8 Percentile for better chances.

For more information about IIMB and Previous Cutoffs do follow the link below

https://www.careers360.com/university/indian-institute-of-management-bangalore

For more information about CAT Cutoff do follow the link below

https://bschool.careers360.com/articles/cat-cutoff