You can check the top colleges below

SRM University, Chennai

Manipal Institute of Technology, Manipal

PSG College of Technology, Coimbatore

Sathyabama University, Chennai

University College of Engineering, Osmania University, Hyderabad

VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad

The National Institute of Engineering, Mysore

To check the complete list you can refer below link

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-India?f%5B0%5D=sm_college_state%3AKarnataka&f%5B1%5D=sm_college_state%3AKerala&f%5B2%5D=sm_college_state%3ATamil%20Nadu&f%5B3%5D=sm_college_state%3ATelangana&f%5B4%5D=sm_course_offered%3AAutomation%20and%20Robotics

Good Luck!!

Hello..

Please go through this link to know the best college for robotics in south:-

https://engineering.careers360.com/colleges/list-of-be-btech-in-automation-and-robotics-colleges-in-tamil-nadu