Neo, you need to read history better. I also used to think like you.
And as 'Kutta' pointed, the more apt question would be.. where was USSR at that point ? USA has always been scared of communists and has hated communism. US always maintained a distance from India because we were close to the communists USSR.
As soon as India got into WTO and shunned its communism, US got close to India. You talk business, they'll talk business.. you talk communism, they'll either shun you or bomb you.. simple.