Over the period of centuries, fossil fuels have not only been catering to our basic energy needs, but also have contributed significantly to the growth rate of civilization. But its ever-increasing consumption rate and rapid depletion of the known reservoirs are a matter of serious concern. Due to the increasing demand for energy and also in view of the deteriorating environment, it has become essential not only to use existing liquid petroleum fuels efficiently but also to explore other sources of energy. The gaseous fuels like natural gas, producer gas, bio-gas, hydrogen, and liquefied petroleum gas (LPG) etc. are the promising alternative fuels. These gases are also, in general, less polluting. The demand for convenient and environmentally acceptable fuels has been growing continuously. Hydrogen is one such fuel which when burnt either alone or in combination with other gaseous fuels has the potential to meet various energy needs. It also provides environmental advantages.