"We've made enormous progress on the issue of civilian nuclear power, and in fact, have been able to achieve just in the last few days an agreement on the first commercial agreement between a US company and India on civilian nuclear power," Obama said.
READ: India-US nuclear deal: All that you wanted to know
Talks between Obama and Singh also focused on Pakistan. Singh said he was looking forward to meeting Pakistani premier Nawaz Sharif at the weekend, but added expectations for the talks should be toned down.
Singh and Sharif are expected to hold a meeting on the sidelines of the UN General Assembly in New York on Saturday, as they reach for better relations despite heightened cross border tensions.
“I look forward to the meeting with ... Nawaz Sharif even though the expectations have to be toned down,” Singh told reporters in the Oval Office after the meeting.
Singh told Obama India was facing difficulties because the “epicentre of terrorist activity remains focused in Pakistan”.
Deadly skirmishes across the border Kashmir have jeopardised plans for the meeting in New York, which would come months after peace talks again stalled between the two neighbours.