HI,

See there is phd courses for various streams , let it be arts, commerce, science, engineering, management studies any of the field there is phd course options. general eligibility criteria set for any phd course is candidates must have a master degree or post graduate course in related discipline from a recognized education board. also must satisfy the qualifying marks criteria. right now in india in engineering discipline and many other courses like arts, commerce, mathematics related disciplines pd course holders get monthly stipends on 25k-50k depends on the course duration and the norms of the university. also there is many companies like facebook research provide scholarship for phd students.

now see generally phd course is of 3-4 years duration, also the person need to submit the research papers as per the course recruitment which is quite a tedious work. so a person should have immense interest for the course before choosing it as a phd thesis.

after doing phd there is several work options like lecturer in college, principle scientist, consultants in relevant discipline etc.

hope it would help.