It is known to us and many other nations that USA earns a lot of money by selling defence materials to other nations to maintain high standard of living. Their policies sometimes look favourable to us but their intention is same. Our leaders do understand it , but do not dare to be strong enough to face it. See north Koria how a small country has made USA to be reasonable and conceeded NK's demand.
At least India can say when we are buyer we will choose our option. If it is a civil deal why not purchase N-Fuels from North koria or Iran. Better try to produce in India itself. Give the message to USA and observe what happens. Why USA is the only choice?