I'll enlist down some of the top colleges of Robotics in Tamil Nadu with their fees -

1. SRM Institute of Information and Technology Fees - 3,20,000
2. PSG College of Technology - 2,91,420
3. Bannari Amman Institute - 1,00,000
4. Hindustan Institute of Science and Technology - 2,38,500
5. Karunya Institute - 7,20,000

Refer to the website below for more colleges available with their fees strucutre -

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

Yes there are ample job opportunities available for robotics field. The demand for robotics engineers is rising in India as well as abroad. There is a variety of opportunities for professionals in this field. Not only do they get to research but manufacture line and experimental robots for the organization they are working.

Best wishes. Thank-you.