An PhD is the most prestigious academic level of education for those who wish to pursue research at the highest level in a particular field. The PhD duration is typically between 3 and six years based on specific university's regulations and the speed of the research. Some PhDs that are part-time can take longer and extend up to 7 to 8 years. The initial year of the PhD course usu... https://www.aimlay.com/phd-course-duration-india-usa-us-iit/