Efforts are being made in the automotive sector to make it less dependent on the fuel derived from  crude oil . Pollution, rise in cost of fuel are some of the obvious reasons.  Apart from this crude oil is a non renewable source of energy and is bound to perish in next few decades. Further its availability is restricted to just few countries. As such it was the need of hour that some alternate source of energy or mechanism be developed to make it a substitute for crude oil products. Situation in India (and in other similarly situated countries) As far as India is concerned, it's needs are heavily dependent on imported oil . India is a growing economy with world's second largest population as such the energy needs are on a rising trajectory.  With increase in vehicles in India and with rise in economic activities, the consumption of fuel is on rise. Since India is a net importer of oil, the pressure on it to procure the same always remains.  The import bills are mostly c