I am doing my engineering in MEDICAL ELEC and i am confused about what to pursue further.please help me with some courses other than GRE.

I am doing my engineering in MEDICAL ELECTRONICS and i am confused about what to pursue further.please help me with some future courses, i do not have any plans of studying abroad so i am not opting for GRE. i would be very thankful if u guide me in courses like GATE,TOEFL and similar entrance ex