Dear Rishav,

In order to become a robotics and automation engineer you have to appear for the entrance exams of engineering. 

You can check the top colleges below

SRM University, Chennai

Manipal Institute of Technology, Manipal

Jadavpur University, Kolkata

PSG College of Technology, Coimbatore

Maharaja Sayajirao University of Baroda, Vadodara

Lovely Professional University, Phagwara

Sathyabama University, Chennai

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_course_level%3AUG&f%5B1%5D=sm_college_degree%3AB.E%20/Btech&f%5B2%5D=sm_course_offered%3AAutomation%20and%20Robotics

Good Luck!!