Only an ignorant fool would say that!!
Lets start a bit of education,
Economic Front
1. A large and emerging new market for american goods in almost every sector for catering to India's needs of more than 300 million middle class. Not to forget the rapid pace at which this number is estimated to double by 2020.
2. India was one of the few economies having a GDP of above 6% even during recession, which shows our capacity to absorb blows and still grow,Investor confidence.
3. A multiple billion dollar nuclear deal
4.Sale of Military equipment which again goes in billions.
5.Infrastructure projects
And still if u don't understand, just check the number of american companies lined up for investments; putting pressure on the government to open the markets completely which uptill now has been resisted.
Political Front
1. India is a one of the largest donor to Afghanistan which is in american interest.
2. Around 40% of trade on global route passes through the Indian Ocean and araibian sea. With only blue water navy in the region India virtually can change the game in future wars.
3. India has good relations with the West,Arab world, SE Asia, Australia, Russia..
4. The Indo-American lobby
5. A possible counter weight to china.
And still the American government hasn't called off the deal..fools they are!!
For almost a decade Iran has been losing patience but is still hopeful to pull off the deal and hasn't given up. That's called economics.
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And if you want more check the below link....
http://carnegieendowment.org/files/tellis_chpt08.pdf