The cut-offs vary and depend on many factors like total candidates appeared, seat matrix, category to which you belong etc among others. The cut-offs are released after the examination results are out or for admission procedures by examination conducting agency or the admitting authorities of various colleges.

Hello,

Now-a-days there are many entrance examinations available at each level of education. There are bunch of examinations after Class 12, after Bachelors and after Masters too. Please mention the field of your interest and related things specifically. This is because even in the engineering field there are exams at National-, State- and college-level. There are entrances for medicine, commerce, designing studies, architecture etc. And then for Masters GATE, JAM etc.