A PhD is a postgraduate degree given by all the universities and higher education institution to a student who have submitted a thesis based on original research in their desired field. It is globally recognized degree. It is the highest level of degree that a student can achieve in their choosen field or subject. A PhD degree requires usually three or four years of full-time study. In this degree course a candidate have to complete a substantial piece of original research presented as a theses or dissertation. A candidate have to choose a topic during admission, have to research on it and present it.
