Presented review is an attempt to analyze progressive enhancement in performance of solar collectors in view of changes in design of collector components, changes and modifications in process pa. ••Parametric influence of design modifications on the performance of solar c. AR Anti-reflectionFPSC Flat plate solar collectorEFPSC. Flat plate solar collectors are simplest, cost effective and popular solar energy harvesting systems. Progressive advancement in flat plate solar collector has been contrib. Methodology of presented review emphasizes the need for writing a review, which is specific on design aspects and related process parameter variables, having direct bea. In a drive to further enhancement in thermal and exergy efficiency of solar collector, there has been conscious impetus given by researchers to develop adoptability of advanced workin.