It is for the Hyde Act. Which restrict India to do Nuclear Tests also the way the deal will work, US can make amendments to it without even notifying Indian govt. There are endless loopholes in the deal, this govt. is rushing on it as they know it cannot be signed and they are just trying to get sympathy votes from people like you who don't know enough about the deal, All they want to do is make an honourable exit from the govt. and make Manmohan Singh a Martyr who would sacrifice his govt. for the good of the country