The growths of the industries are the indicators of a growing country and in parallel, surface transport also grows rapidly, which is inevitable. All countries are much worried about the degradation of the quality of life due to pollution from industries and automobiles in particular. Rapid growth in mobility leads to violent exploration and exploitation of petroleum resources. The high demand consequences instability in fuel prices. The higher energy content of vegetable oils is nearly 80% –90% of the diesel fuel and high cetane number of the vegetable oils are the more suitable for the diesel engine. However, the viscosity is the main problem and it is eradicated by transesterification. The use of vegetable oil as fuel helps the agriculturist, hence dependability of fossil fuel reduced. The biofuels increase employability and reduce the rural migration to metro cities further, increasing the GDP of the rural. This paper is focused on the use of non edible vegetable biofuel as sole fuel in a DI diesel engine. The results reveal that The CO emission is 0.13%, NOx shows an increase of 5% and significant reduction smoke by 23% than diesel. The decrease of BTE for ester is 20% than Diesel.