Dear Abhishek,

In order to become a robotics engineer you have to appear for the entrance exam of engineering. If you want admission in Karnataka only you can appear for Manipal entrance exam.

If you have domicile certificate of Karnataka then KCET otherwise, you can appear for COMEDK exam. 

You can check the top colleges in Karnataka below

Manipal Institute of Technology, Manipal

MS Ramaiah University of Applied Sciences, Bangalore

The National Institute of Engineering, Mysore

KLE Technological University, Hubli

SDM College of Engineering and Technology, Dharwad

To check the complete list you can refer below link

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

Good Luck!!