Ph.D Physics

Hi, Please find the link below:
https://www.shiksha.com/university/tata-institute-of-fundamental-research-Mumbai/tifr-gs-exam-results.

I don't think it's a good decision. According to my point of view, you should opt for Ph.D so that you can get better opportunities after Ph.D in research field as well you can also get good job opportunities in colleges as a professor.

1. Kent State University, Kent USA
2. George Institute of Technology, Atlanta
3. Northeastern University, Alexander city
4. Yale University, New Haven
5. The University of Texas at Dallas, Richardson.

You can apply for Ph.D in various research institutes with the help of the JEST exam.
TIFR also has an entrance exam for Ph.D. You can try out UGC NET exam for JRF (junior research fellowship) it increases your chances of getting Ph.D for a specific subject (i.e. the specialisation you are looking for).

IISc does not offer integrated Ph.D. physics. Visit the link to know about the Ph.D. programmes offered: https://www.shiksha.com/university/indian-institute-of-science-bangalore-22350/courses/phd-bc.

Please refer to the link for details:
http://www.iiserpune.ac.in/admissions/phd-programme/phdadmissionphysics

Elon Musk is a genius person learned computer programming at the age of 12 and after his high school he earned degree in physics and just dropped out from Ph.D. to pursue his dream career. So basically he is following the same Indian education system. But the thing is he has a goal which he has achieved so there is no difference. He will follow the same as what he had followed.

You can opt for astrophysics. Also, the course is offered in very limited colleges. Try to find out the best. IISC campus is an option where you can get opportunities to know more about astronomy.