Bio-diesel produced from the non-edible oil is one of the best methods for overcoming the problems of pollution and energy crisis. Bio-diesel obtained from Pongamia Pinnata provides viable option as an alternative fuel, especially in subtropical countries like India. Pongamia Pinnata can be used as alternative fuel for the standard diesel engines if its viscosity has been lowered before entering into fuel injection system. Apart from that it should have a low content of phosphorus and alkali earth metals such as Ca and Mg. Storage of oil for long time can lead to formation of gums if phosphorus content is more than 50 ppm. These gums can lead to choking of fuel lines and injector nozzles if oil is used without processing. This paper essentially deals with removing phosphorous content from the Pongamia oil by water and acid degumming. Phosphoric acid and citric acid is used for acid degumming process. Citric acid reduced phosphorus content from 810 PPM to 22 PPM (97.28% reduction) and Phosphoric acid reduced phosphorus content from 810 PPM to 31 PPM (96.17% reduction). Top degumming method was also performed on Pongamia which provided best results, reducing Phosphorus content from 810 PPM to 14 PPM (98.27% reduction). Minimum yield loss was obtained as well producing 98.1% of yield oil. NMR results confirmed that basic structure remained unaffected after the process. Hence the property of biodiesel required for engine application was retained. © 2014, Sphinx Knowledge House. All rights reserved.