Hi Aspirant!

There is no GATE syllabus for Mechatronics Engineering graduates. But you can always write GATE either via Mechanical engineering (ME stream) or by ECE paper in GATE. I will suggets you to write it through ME paper. And you can pursue M.Tech from IITs  such as  Mumbai, Chennai, Delhi, Kanpur and Kharagpur in robotics engineering. And there are also some PSUs which hire mechatronics candidates through GATE ME such as BHEL etc.

Thankyou!