Hi sorry to say but I want to clarify that after doing graduation in biology you can’t do btech in biotechnology but you can do mtech in biotechnology and for doing mtech in biotechnology  you should have to qualify gate exam with any of the following qualifications.

1. Msc in [ biology /Bio-Chemistry/ Micro- Biology/ Bio-Physics/ Bio Technology / Genetics ]

2. Btech in [ biotechnology/ Chemical Engineering/ Leather Technology/ Bio-Chemical Engineering/ Industrial Bio-Technology / Petroleum Technology / Petroleum Engineering / Bio-Technology / Petrochemicals / Petroleum Refining & Petro Chemicals / Agricultural Bio-Technology ]

LIST OF TOP COLLEGES WHICH HAVE MTECH IN BIOTECHNOLOGY COURSES

1. IIT madras

2. IIT guwahati

3. IIT Hyderabad

4. IIT mandi

5. NIT Rourkela

6. MNNIT Allahabad

7. Birla institute of technology  mersa, Ranchi

8. Thapar  institute of engineering and technology thapar, Patiala

9. Vellore institute of technology Vellore

10. Amity university noida

11. SRM engineering college kancheepuram

12. PSG college of technology Coimbatore