India will not be an ally of the United States but will be another great power, a top White House official said Thursday asserting there is no other bilateral relationship that is being "deepened and strengthened" more rapidly than between the two countries over the last 20 years. Responding to a question on India during his appearance at the Aspen Security Forum meeting here, Kurt Campbell, the White House Asia coordinator, said that in his view India is the most important bilateral relationship for the United States in the 21st century. "The fact is, I don't know of any bilateral…