Transportation, automobile, information technology service provider businesses are developing at rocket pace. Accordingly energy requirement for this industries is also increasing vertically. Petro-fuels are having limited reserves and can not fulfill the requirement of all. There is a need to search for alternative. Biodiesel is one of the most preferred alternative of fossil fuels. This work is a compilation of the information collected from various sources giving due credits to all. It explains the need of alternative fuels, details of biodiesel, different approaches to produce the same, feed stock available world wide for the production of Biodiesel, policies, initiatives taken by the government and private organizations in development and commercialization of biodiesel and its production scenario in different parts of the world. The author expresses gratitude and acknowledge all the resources used in the compilation of this book. The book is very much useful to all those who are intended to work in the area of biodiesel.