You can consider below names as these colleges are considered to be decent to pursue B.Tech in BioTech -

Indian Institute of Technology, Delhi Delhi

Indian Institute of Technology, Kharagpur Kharagpur

Indian Institute of Technology, Roorkee Roorkee

Indian Institute of Technology, Guwahati Guwahati

Delhi Technological University Delhi

National Institute of Technology, Warangal Warangal

National Institute of Technology, Calicut Calicut

Netaji Subhas Institute of Technology Delhi

Anna University Chennai

VIT University, Vellore Vellore

Birla Institute of Technology, Mesra Ranchi

Thapar Institute of Engineering and Technology Patiala etc.

Good Luck!!!