Dear Pratishta, for pursuing LLM through CLAT, the basic eligibility criteria is that you should possess a Bachelor's degree in Law with a minimum aggregate of 55% and the  degree of Law Programme needs to be approved by the Bar Council of India. And then there is a 5% relaxation for Reservation categories. Because B.Tech in Biotechnology or any other stream is not a Law Degree, unfortunately you are not eligible for CLAT.