I think you are thinking too much of US's influence on Indian economy. Indo-US trade is around ~$40 billion in 2010 and of which Indian exports stands at $21 Billion. Of this IT exports is only half the value as we also export textiles, gems, food and other products. So please don't over-estimate the power of US when it comes to India. We are the least affected when there was recession in 2008. You stop trade with us we don't suffer as much as you think.
news.outlookindia.com | 'Indo-US Trade Likely to Double in 5 Yrs'
The buying of 50 boeing long-haul jets is not because of some threatening from your legislature but as a quid-pro-quo to the Indo-US nuclear deal.