High price coupled with paucity of petroleum reserve and environmental concerns have sparked a research for renewable engine fuel. So my present work is based on Blended fueled Diesel Engine. The present work is divided into 7 chapters. Chapter 1 presents brief introduction of the blended fuel and problem. Chapter 2 presents the literature review of the problem. Chapter 3 illustrates with the experimental set up and description about experimental accessories with its application and fuel properties is also discussed.In chapter 4 deals with preparation about experimental setup and experimental procedure. Data analysis is also carried out in this chapter. Chapter 5 deals with the methodology used for the work. Chapter 5 presents study of the influence of the performance parameter and fuel properties on the Diesel engine. Chapter 6 enlightens the typical results obtained which are compared with the results available in open literature and new results are presented. A brief study has been carried out with the help of Artificial Neural Network (ANN). Chapter 7 highlights the major conclusions based on the detailed studies carried out in the present work.