Which Ph.D. has the highest salary?

The Ph.D. is a doctoral-level course that allows you to do research on a particular subject. Your research can later get you a very good salary. According to research, the following are some of the popular subjects that can get you a salary above 10 Lacs per year: 1. Biotech & Life sciences research

If you are passionate about money, you should not opt Ph.D. because it's note for generating money it's a way of innovation. But still, you can get the highest in finance because you can take projects of private firms, they pay much more for intelligent research.