The world’s energy demand is consistently increasing due to increasing population. Alternate of fossil fuels are being explored because of diminishing fossil fuel reserves and increasing environmental degradation. Biodiesel is an alternate of petro-diesel which is made by transesterification of vegetable oil or animal fat. It is considered to be eco-friendly fuel as it reduces emission of several pollutants. Biodiesel comprises of mixture of fatty acid methyl or ethyl esters. Though many plants have been examined for biodiesel production but Jatropha curcas was found most suitable for developing countries as it can grow in marginal or wasteland. It also has very low gestation period than other oil seed crop.