If I complete my B.E. or B.Tech in mechanics then what are the subjects that I could take for my post graduation i.e. M.S. or M.Tech?

I think robotics or nanotechnology are best options there are great scope in research and industrial jobs.

Dear Rohit according to me,it totally depends on your gin that which cource you want to take for your masters.There are various disciplines like thermal manufacturing design production etc in which you can get admission. hope it helps. best of luck