Calculate, what is 1% of $200 billion dollars, and say that there are no benefits, all your major international deals have a corruption angle.
BTW the nuclear power plant is the most expensive to built, it takes atleast 4 years to build one, (this is the best possible figure achieved by Japan), the roi is very poor, because Nuclear plants take a long gestation period. Nuke plants, have additional overheads like security, waste disposal and also dismantling cost of $300 million, hence the unit cost of power will work out much more than Rs.10 (this is of course conservative estimate, the actual figures might be even more worse).
Nobody, can afford such an expensive power option and the company which produces power will in all probability end up in doldrums.