See,we have been mostly under US ban or sanctions for decades,mainly due to either our nuclear ambitions or they perceived us to be closer to the Soviets.Its just that lately they just could not resist the huge internal market of India,when India globalized its own market.Its purely a business relationship.Had India been a small country,like,say Cuba,then the yankees would not even have bothered.
And while the markets are open,and the relations normalized,then we would also like to make the most out of it,isnt it?Afterall US happens to be a very big market for India.I dont think there is anything wrong in having trade relations.Is there something in specific that is bothering you? Speak it out...