Below are the best colleges for Mechatronics Engineering in Tamil Nadu-

1- VIT University, Vellore
2- SRM University, Chennai
3- Thiagarajar College of Engineering, Madurai
4- Anna University, Chennai
5- Kumaraguru College of Technology, Coimbatore

To check all the colleges which are offering this course with ratings you can check below link-

http://www.engineering.careers360.com/mechatronics-engineering/colleges?term_node_tid_depth=1554&field_relate_to_branch_target_id=817