The deal is just to end India's apartheid from nuclear states. in fact russia, france who generally oppose us on many matters are supporting it because currently India is doing nuke cooperation with these two. even if we dont build reactors we will get access to a lot of computer peripherals etc(which are currently banned for export to india) which can help us in advancing in space and defence.. so we have to take the bigger picture..In fact US is not saying that buy reactors from us.. it is actually 4 reactors from russia(for kodunkulum plant) which are currently getting affected..