Hello there. Hope you are doing good. I would like to tell you that the cutoff varies every year. There are several factors determining the cutoff such as:-

• Number of candidates appearing in IRMASAT 2020 exam.
• Level of difficulty of  IRMASAT exam.
• Number of candidates passing IRMASAT 2020

However, based on previous years cutoffs, it is expected that the Cat and XAT cutoff for OBC NCL candidates will be somewhere around 70 percentile. For your reference, I am sharing a link with you which consists of all the necessary information of the exam along with the expected cutoff.

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

I hope you found this answer helpful. God luck for your future.