Statement-I is correct. India's electricity generation is predominantly coal-based, accounting for a significant majority of the total power output. This reliance persists despite the presence of indigenous uranium deposits in regions such as Jharkhand and Andhra Pradesh.
Statement-II is incorrect. Nuclear power reactors typically utilize low-enriched uranium (LEU), where the concentration of the fissile isotope U-235 is increased to approximately 3-5%. Uranium enriched to 60% or more is considered highly enriched uranium (HEU), often associated with weapons-grade material, and is not generally used for commercial electricity production.
Options (a), (b), and (d) are incorrect because Statement-II contains a factual inaccuracy regarding the enrichment level of uranium required for electricity production in commercial nuclear reactors.