Hi Abshar Khan,

• Few points to consider -
• One has to have a graduate degree to be able to sit for the exam, there is no cut off as such.
• Anyone who passes ISI entrance exam and interview do show his/ her knowledge and comfortability with the subject.
• In case of low scores in graduation, they might ask you a reason for the same during the interview but I don’t think it’s gonna affect your selection chance in any way.
• Therefore, just try to do well in exam and interview and don't worry too much about this aspect. 

All the best.