Source: Foreign Affairs

Until the late 1990s, the United States often ignored India, treating it as a regional power in South Asia with little global weight. India's weak and protected economy gave it little influence in global markets, and its nonaligned foreign policy caused periodic tension with Washington. When the United States did concentrate on India, it too often fixated on India's military rivalry with Pakistan.
Today, however, India is dynamic and transforming. Starting in 1991, leaders in New Delhi -- including Manmohan Singh, then India's finance minister and now its prime minister -- pursued policies of economic liberalization that opened the country to foreign investment and yielded rapid growth. India is now an important economic power, on track (according to Goldman Sachs and others) to become a top-five global economy by 2030. It is a player in global economic decisions as part of both the G-20 and the G-8 + 5 (the G-8 plus the five leading emerging economies) and may ultimately attain a permanent seat on the United Nations Security Council. India's trajectory has diverged sharply from that of Pakistan.

With economic growth, India acquired the capacity to act on issues of primary strategic and economic concern to the United States. The United States, in turn, has developed a growing stake in continued Indian reform and success -- especially as they contribute to global growth, promote market-based economic policies, help secure the global commons, and maintain a mutually favorable balance of power in Asia. For its part, New Delhi seeks a United States that will help facilitate India's rise as a major power.

Full text available in Foreign Affairs.