To make your career in robotics you can go for engineering after your 12th class.

You can choose the branches like electrical, mechanical or computer science. 

Branch of engineering which comes closest to robotics in India is B.Tech in Mechatronics.

You can also persue below courses

B.Tech in Robotics

B.Tech in automation and Robotics

B.Tech in Mechatronics

Bachelor of Engineering in Advanced Robotics

Good Luck!!