The New Yorker has the answer.
India has become the state that we tried to create in Pakistan. It is a rising economic star, militarily powerful and democratic, and it shares American interests.And:
If the measure of our aid is the gratitude of the Pakistani people and the loyalty of their government, then it has clearly been a failure.
Or maybe that wasn't such a surprise to you? Well, read the article anyway, because there are a lot of unsavory facts about our involvement with Pakistan that U.S. taxpayers really should know.)