Abstract HPLC is an analytical technique widely used for identification, separation, detection and quantification of various drugs and its related degradants. HPLC process development is important in case of drug discovery, drug development and in analysis of pharmaceutical products. It is also employed to separate the manufactured drugs and its related impurities. It also involves the understanding of physicochemical properties of drug substances; hence facilitate the development of analytical method. The article mainly focuses on optimization of HPLC method during process development and validation of that method according to ICH guidelines. It also involves some important parameters required for determining the efficiency of the method.