@Karthik7903,
Is your project about the biodiesel or the engines using it? We make some biodoiesel from waste oils. The literature we found was pretty sparse.
All we found was a methoxide and heat treatment to spearate the glycerine from the complex ester which is the biodiesel.
Is the rice oil a specific complex ester?
If youre looking for thermo values, cant help you. All I know is that the biodiesel works just fine for Ford F 250's 350's and 450's (All with the 6.0, 6.4, 7.3 and the Caterpillar C-5 engines)