Currently diverse biofuels are used to power the diesel engine and their behavior is explored by alternative fuel researcher society and limelight has also turned on its optimization, production procedure, enhancing the oil yield, diverse viscosity decrement technique etc. Consequently, an elaborate review was carried out in diesel engine fuelled with biodiesel. Further, it was acknowledged that only a few research works were done with low viscous biofuel. In this context a comprehensive research investigation was carried out by fuelling the diverse low viscous biofuels in the diesel engine...