Hello Candidate!!

As you have mentioned your score in JEE mains, 90 percentile, it's not bad but Yes not up to the mark for taking admission in Sir JJ College of Architecture.

The cut-offs are high as it is one of the top College not only of Maharashtra, of India also. So, the cut offs for OBC candidate also lies from 94%+ in JEE Mains.

Only 67 seats are there for B.Arch in this college and many are aspirants. So, you will not get chance to take admission in this college.

I am providing you the link where you can get all the details about the College:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/colleges/sir-jj-college-of-architecture-mumbai/amp&ved=2ahUKEwjPlP6ZldnsAhWHxjgGHdEvBPQQFjAPegQIFhAB&usg=AOvVaw0BPTVynmxtusRZn3jF_Iqh&ampcf=1

Hope that my answer helped you!!

Good Luck and Best Wishes for Future!!

Thank You