The literature search is a very significant step in the research process. Research is carried out in order to inform people with new knowledge or discovery. However, it is not to be expected that everybody would willingly believe what one is tackling in his/her whole research paper. Thus, what one can do to make his/her research more credible will be to support them with other works which have spoken about the same topic that one has for his/her research. This is where literature review comes in. A review of related literature is to be made to gain a proper perception and clarity about the research topic. In the historical and contemporary context, the review of research studies in the related area has been useful in understanding appropriate tools and techniques that can be used in appreciating the various evidences generated and policy prescriptions suggested there in.