It is difficult to say that a single college is best , I am providing you the list of the colleges in Tamilnadu

• College ofEngineeringg, Guindy
• Madras Institute of Technology
• PSG college of Technology
• Thiagarajar college of Engineering
• Government college of engineering, Coimbatore
• Coimbatore Institute of Technology
• SSN ,chennai
• Kumaraguru college of engineering

• VIT university
• SASTRA university
• Amrita University
• SRM university