Continuously growing environmental issues have become a significant problem in the world. These ecological issues deteriorate our day to day life and are responsible for serious diseases. Also, the growing industrialization of the world has steeply risen and demanding petroleum products for their modernization. Economic development has also resulted in a considerable rise in energy demand. Biodiesel, a less polluting and sustainable fuel replacing diesel, has been gaining significant attention from researchers from all over the world. The utilization of vegetable oil and waste oil as fuel is found to be less polluting than the petrochemical products. The fundamental problem in biodiesel production is that it is more susceptible to oxidation, which results in increased viscosity of biodiesel concerning time, which in turn creates the problem. Therefore this review paper is focused on the current fossil fuel scenario concerning with respect to World and India along with the properties of biodiesel resources and its production processes.

不断增长的环境问题已成为世界上的重大问题。这些生态问题恶化了我们的日常生活，并导致严重的疾病。此外，世界日益增长的工业化急剧上升，需要石油产品来实现现代化。经济发展也导致能源需求大幅上升。生物柴油是一种替代柴油的低污染且可持续的燃料，受到了世界各地研究人员的极大关注。发现使用植物油和废油作为燃料比石化产品污染更小。生物柴油生产的根本问题是它更容易被氧化，这会导致生物柴油的粘度随时间增加，从而产生问题。