India can lead in FBRs… Nuclear Power by Dr M R Iyer - February 17, 2021February 27, 20210 For India the rationale for developing FBR is nuclear fuel security. India has limited uranium mineral resources that necessitate importing the fuel which has its uncertainties. But India is rich in thorium deposits. Though thorium cannot be used directly as nuclear fuel, it can be converted into useful fuel along with the spent uranium in a FBR.