Although textiles make up most of the export shipments, automotive and pharmaceutical goods are also significant.

Airfreight volume from India to the U.S. has been increasing by approximately 8 percent each year, and is likely to stay at that rate over the next three years.

Congestion is being felt in other ways, as well. The fast-growing high tech industry in and around Bangalore, India has its challenges: high staff turnover; competition from China; backlash from U.S. voters; and more recently, infrastructure problems.

The longer commute alone has prompted some companies to move elsewhere, to cities such as Madras and Calcutta.

Companies and citizen groups blame a nonresponsive Karnataka state government for Bangalore's worries.