A plan or scheme by which the activity of searching for and assessing information found is carried out is called a research strategy. A research strategy usually involves a number of steps. Firstly, the analysis of the major concepts of the topic. Secondly, defining relevant keywords and their synonyms. Thirdly, searching appropriate information sources (e.g. databases), and fourthly, assessing the quantity and quality (relevance) of the information found. The research strategy, a subset of research design, includes elements of data collection and interpretation and emerges from both the research purpose and question. These strategies differ in their Ontological assumptions, Starting points, Steps or logic use of concepts and theory, Styles of explanation and understanding and the status of their products. Each strategy has connections with particular philosophical and theoretical traditions, i.e. research paradigms (Blaikie 2007).The paper has been analyzed in view of the research strategies which are done in carrying out the research activity. They provide a ladder which helps in carrying out the research. The strategies Inductive, Deductive, Retroductive & Abductive have been explained in the paper with their epsitelmogical assumptions. The paper analyses their importance & also brings out its applications that have come over the years.