India's Prime Minister Manmohan Singh has assured U.S. lawmakers that his country will not spread sensitive nuclear technology.
Mr. Singh's speech to a joint meeting of Congress on Tuesday came one day after President Bush said he would seek a change in U.S. law so Washington can assist India's civilian nuclear energy program.
The prime minister told Congress that India never has been, and never will be, a source of proliferation for sensitive technologies.
Mr. Singh also called for stronger U.S.-Indian ties, saying the countries are "natural partners" on economic, energy and security issues.
He said the United States and India must make "common cause" against terrorists, and have an obligation to help countries that want to build democratic institutions.
Mr. Singh said India's economic growth is in America's own interest, and called on U.S. companies to help build up India's infrastructure.