M.S

Germany's universities and colleges have very low fee.

MS Ramaiah offers MBA which is affiliated with university of Mysore.
The faculties and all other facilities is same for MBA and PGDM.
All MBA and PGDM students sit together for the placements.
In MBA scoring good marks is not easy task.

USA, Germany would be the best to pursue MS in engineering.

UIC has an edge over RIT in the ranking. Rest you can check about the expenditure and faculty and decide.

If interested in Research go for JRF. Else apply for MBA and look for a corporate job. You must already be aware about JRF be science fellow. for MBA look for good colleges, IIM's, IIT's, NIT's Lovely Professional University, Symbiosis etc. Major point to llok is campus placement placement. Best of Luck.

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

USA and Germany are best for the courses you hv mentioned. In india, you may look into IITs for the same.