Ph.D. has its own value, and IGNOU is the world's largest university, so it most certainly has value. There are private universities, such as Manipal, that have their own individual value in terms of employment.

The question is how much time you will spend learning and researching the field you intend to pursue. There is no need to be concerned about the doctorate value if you finish learning the subject of your choice to the best of your ability. You should earn your Ph.D. rather than purchasing one.

You must strive for excellence, and success will follow you.