Renewable energy resources are widely acknowledged as the most viable alternatives to carbon-based fossil fuels. However, their intermittent nature poses practical limitations for widespread usage. Hydrogen has emerged as a promising solution in addressing these challenges due to its clean and high energy efficient properties. Nevertheless, hydrogen production itself requires significant amount of energy. To facilitate this process, catalyst play a critical role by reducing the reorganisation energy and enhancing the reaction rate. In our laboratory, my primary research focus revolves around electrochemical generation of hydrogen from aqueous solution. For this purpose, we develop 3d transition metal based molecular catalysts that exhibits key characteristics resembling those found in natural hydrogenase enzyme.