Hello Nikhilesh, 

Congratulations on scoring 66.75 percentile in JEE mains 2019.

Last years cut off for OBC category was 45 and this years it is expected to be around 48-53 .

Compare to this u have qualified for JEE Advanced and i suggest you to gear up for this , keep doing your hardwork and u might end up in any government college. 

Best of Luck 

Thank you .