What is the 12th cutoff marks seen in college admission

Dear student, 

That depends on course to course. For B.Sc course admission in govt colleges (Like Delhi University, Mumbai University, Calcutta University, Pune Univesity, BHU, JNU etc) the cut-off will be relatively high. Private college cut offs will be relatively low in comparison to govt. colleges. So if you score 95 percentile & above in your Board exams, then you have chances of getting into a govt. college. Else, you'll have to look for private college options.