hi,

see the qualifying degree would be mentioned by NITS and students who satisfy the qualifications will only eligible for admission. however if it mentioned by particular institute that m.tech biotechnology eligibility criteria is  b. tech only then you may not eligible to apply for those institute. however many  m.sc passed candidates are eligible to apply for m.tech, so you should participate in ccmt counselling with the gate score you have.  you may have to change the stream if none of the nits offers m.tech in biotechnology to m.sc graduates.

To know about complete list of probable college name, based on your score, category please use Careers360 college predictor tool,

https://engineering.careers360.com/gate-college-predictor?icn=QnA&ici=qna_answer