Hydrogen is a versatile fuel that can power almost anything. Fuel cells are an energy conversion device that can harness the power of hydrogen. A fuel cell produces electricity through a chemical reaction, but without combustion. It converts hydrogen and oxygen into water, and in the process also creates electricity. It's an electro-chemical energy conversion device that produces electricity, water, and heat. A proton exchange membrane fuel cell transforms the chemical energy liberated during the electrochemical reaction of hydrogen and oxygen to electrical energy, as opposed to the direct combustion of hydrogen and oxygen gases to produce thermal energy. A stream of hydrogen is delivered to the anode side of the MEA (Membrane Electrode Assemblies). At the anode side it is catalytically split into protons and electrons. In this article, the various types of non precious metal catalysts that can be used as an alternative to expensive precious metal catalysts have been discussed. Over the years several classes of non precious metal catalysts have been identified and developed that reduces the cost of production. Non precious metal catalysts enhance the catalytic activity for oxygen reduction reaction and reduce the cost of the reaction. Light has been given upon the catalytic activity of such non precious metal catalysts.