Hello

PSG tech collage has a good placement reviews let me tell you first about the scope of biomedical and biotech engineering, Biomedical is mailnly related to hospitals and electronic instruments used in hospitals so its much close to ECE where you will have to study about the circuits. But Biotechnology engineering is purely life science  and you will have to do jobs at labs and for dry lab you will have to concentrate in clinical research organisations. 

Thank You