• BS Abdur Rahman crescent institute of science and technology
• Dr MGR educational and research institute
• Indian institute of Technology,Madras
• Jeppiaar Engineering college
• Rajalakshmi Engineering college
• Satyabama institute of science and technology
• Shri Andal alagar college of Engineering
• See sastra institute of Engineering and technology

Dear aspirant,

If you want to pursue Biotechnology discipline through an NIT in Tamil Nadu. There is no option better than National Institute of Technology Trichy. It offers B.Tech I'm biotechnology . Other than this there are also many private institutions that offer biotechnology in case you would like to try. 

All the best.