Hi Ramasari,

Colleges in Tamil Nadu offering B.E./B.Tech in Mechatronics Engineering and accepting admission through JEE Main are as follows:-

• SRM Institute of Science and Technology, Chennai
• Bannari Amman Institute of Technology, Erode
• Shanmugha Arts Science Technology Research and Academy, Thanjavur
• Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya, Kanchipuram

You may refer to this link for more information about Engineering Colleges in Tamil Nadu offering Mechatrincs Engineering Course accepting JEE Main.

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!