In this project Experimental determination of various properties of Feed oils and Biodiesel was carried out. For the Indian context, especially Jatropha oil (non -edible) was used, as it is available in plenty and that to at reasonable cost. From the experimental data, accurate models for the prediction of physical properties were developed. The work was focused on developing models of properties for which existing model fails. Similar methodology was adopted for the blends of Biodiesel with various fuels The project duration was 2 years. Funding received for the project was 3.3 lacs from GUJCOST.