According to projections from Brand USA, the public-private partnership responsible for promoting the United States as a premier travel destination, the U.S. will likely see an influx of many more visitors from India by the year 2015.
This article from the Economic Times states that visits from the country rose by 9.2 percent in 2012, reaching 724,433 visits. By 2015, Brand USA expects that number to reach one million.
In 2012 Indian visitors spent $4.9 million and ranked 10th in terms of money spent.
More at the Economic Times.