M.S

MBA after MBBS is preferable career options for those doctors who want to be in the field of hospital administrator and do not want to have active medical practice. Doctors with MD and MS can earner better in comparison to hospital administrators in long run.

US, Canada, Australia and Germany are amongst the best. However, finding a job in Germany is difficult. Finding jobs in Canada and Australia is comparatively easier. Go to US if you want to move to research field post MS. But, if you plan to get a job after MS then consider Canada or Australia. Also, for job you might want to try Masters in engineering.

You need to appear only in GRE and IELTS for the same.

It depends on your skills but older IITs are better like IIT-B, IIT-D, IIT-KGP, IIT-K, etc.

Aerospace engineering has good scope in India particularly because if Make in India initiative. Job opportunities for aerospace engineering graduates are available in ISRO, DRDO, aeronautical engineering manufacturing companies such as HAL, Aircraft component design & manufacturing ancillary units, IAF, R&D outsourcing companies, IT companies & academics etc.

USA universities are a better option for MS in mechanical engineering because of excellent academic atmosphere and opportunities for learning & overall development.

Hi,
Following are the best universities in Canada for MS:
1. University of Toronto,
2. University of British Columbia
3. University of Alberta
4. University of Ottwa
The fees will be between 30 lakhs to 50 lakhs.

IIT, Delhi is the best college to do this.

MS is the best option if you get a good rank in GRE.

You are a specialist in dental, how can you go into ear, nose and throat specialization? Else, just do Masters if you want to study further.