Good Afternoon

Hope you are absolutely fine, as per your query... here is the list of top CSE colleges in Tamil Nadu:

-> IIT Madras - Indian Institute of Technology
-> NIT Trichy - National Institute of Technology Tiruchirappalli
-> SRM University Chennai - SRM Institute of Science and Technology
-> VIT Vellore - Vellore Institute of Technology
-> PSG Tech Coimbatore - PSG College of Technology
-> Sathyabama University - Sathyabama Institute of Science and Technology
-> Kumaraguru College of Technology, Coimbatore
-> GCT Coimbatore - Government College of Technology
-> BIT Sathy - Bannari Amman Institute of Technology

For more information about CSE colleges in Tamil Nadu checkout given link below:
https://engineering.careers360.com/colleges/list-of-computer-science-engineering-colleges-in-tamil-nadu

Hope you found it helpful
All the best!!!