How is M.Tech biotechnology at IIT Mandi in terms of research?

Choosing an M.Tech. in biotechnology for research purposes might not be a good decision. 

For better job opportunities and placements, opt for other streams like CSC; otherwise, you will end up as a postgraduate in the biotech field without the perfect job you wish for. 

The biotech department in most of institutions, including IITs, is weak in nature. Most students prefer other streams for their higher studies, which is a good idea to secure your career. 

The only option left for you is to take the JRF and NET exams. If you have a strong interest in the biotech field prefer institutions like IISERs, TIFR, IISc, DU and JNU other than Mandi