you can find lot of online site where you can predict that

visit this link for detail about that: https://engineering.careers360.com/articles/bvp-cet-result

and actually it doesn't matter whatever is you mark and all rank is now a day given priority and even the two student have same mark both will have different rank and all about the creteria how is that decided depend upon various factor like age, mark in particular subject and all so better you go with that link