Hello Aspirant,

Hope you are doing well, As you've mentioned that your engineering ranking  in kcet 2021 is 19000, with this rank your chances of getting  seat in top engineering colleges are  low, You will get biomedical engineering in ACS College of Engineering, But you can get seat in good college also, Wait & try for all rounds. Here are the colleges where you have good chances of getting seat through kcet:

RV College of Engineering, Bangalore - BE Industrial Engineering and Management

Ramaiah Institute of Technology, Bangalore - BE Mechanical Engineering, Biotechnology engineering, chemical engineering

BMS College of Engineering, Bangalore - BE Mechanical Engineering, Electronics & instrumentation engineering, Biotechnology engineering, chemical engineering, BE Medical Electronics engineering

JSS Science and Technology University, Mysuru - Electronics & instrumentation engineering, BE Civil engineering, BE Environmental Engineering,

University Visvesvaraya College of Engineering, Bangalore - Civil Engineering

The National Institute of Engineering, Mysore - BE Electrical & Electronics Engineering

RNS Institute of Technology, Bangalore - BE Electronics & Communication Engineering

Also you can also predict your college for KCET 2021 by following link:

All the best!

Hope this helps you