LumosNox

I am going to start my third year of undergraduate studies. I'm pursuing a B.tech in Biotechnology, which is a four year course, from India. I am quite interested in pursuing higher studies in the field and am quite confused as to how should I build up my profile to increase my chances of getting into prestigious universities in the USA. I have already begun preparing for GRE and would surely be thankful for any advice on how to proceed further.