Hi, Ravi Shankar.

BBEC college is one of the best engineering colleges in assam.

Your rank in cee 2019 is 3039, though you're from ST category, I'm sorry to inform you that you can not get into BBEC mechanical branch, as your rank is very high.

So, I suggest you can try for the other colleges which are under cee so you can get admissions into them.

Good luck.