Hi,
The colleges for doing B Tech in biotechnology are:
K L University - [KLU]
Andhra University, College of Engineering - [AUCE]
Vignans Foundation for Science, Technology, and Research
Jawaharlal Nehru Technological University - [JNTU]
Centurion University of Technology and Management - [CUTM]

Hindustan Institute of Technology & Science (HITS)
Tamil Nadu Agricultural University
PSG College of Technology - PSGCT
Karpaga Vinayaga College of Engineering and Technology
SASTRA (Deemed to be University)

Amrita School of Biotechnology, Vallikkavu
Sahrdaya College of Engineering and Technology, Bio
Sree Buddha College of Engineering
Mohandas College of Engineering and Technology
MET's School of Engineering

NIT Warangal - National Institute of Technology
CBIT Hyderabad - Chaitanya Bharathi Institute of Technology
Joginpalli B.R.Engineering College
Gokaraju Rangaraju Institute of Engineering and Technology

hey,

here are the colleges,

1. KL university, [KLU], andhra pradesh

2. andhra university, college of engineering -[AUCE] , andhra pradesh

3. vignan's foundation for science , technologyand research , andhra pradesh

4. jawaharlal nehru technological university -[JNTU] , andhra pradesh

5. centurion university of technology and management -[CUTM], andhra pradesh

6. sri venkateswara college of engineering -[SVCE] , andhra pradesh

7. national institute of technology -[NITAP] , andhra pradesh

hope this helps!