New Delhi, Sept 25 (ANI): Prime Minister Dr. Manmohan Singh on Wednesday said India sees the United States as a long-term partner in its development efforts, and also in fostering a global environment conducive to growth. In a departure statement released before embarking on a five-day visit to the United States, Dr. Singh said: "For India, the U.S. remains a key source of technology, investment, innovation and resources, and one of the most important destinations for our goods and services. We have productive and deepening partnerships in trade and investment, defence, counter-terrorism, intelligence, internal security, cyber security, civil nuclear energy, environment, health, higher education, space, science and technology and culture.