The exponential growth of information source on the web and in turn continuing technological progress of searching the information by using tools like Search Engines gives rise to many problems for the user to know which tool is best for their query and which tool is not. To overcome this problem, Metasearch Engines are developed, which dispatch the user's query to multiple search engines automatically and refine the results obtained from the underlying search engines to give the best out of the best to the user. This paper gives the overview of the architecture of a typical metasearch engine and identifies various technical and non-technical parameters. On the basis of these parameters, a comparative study between traditional search engines and metasearch engines has been carried out and reported.