Hey.

Considering your rank in COMEDK 2018, if you belong to the general category, you do not seem to have any chance for admission in RV College of Engineering, Bangalore in the mechanical branch, according to the Careers 360 College predictor. 

You do have a fair chance in other colleges in the same branch. You can use the college predictor yourself.

https://engineering.careers360.com/comedk-college-predictor

Best of luck!

Congratulations! Ofcourse try and get

All the best