The former Assistant Secretary of State for South and Central Asia, Biswal this month joined the US India Business Council (USIBC) as its president. USIBC is a part of the powerful US Chambers of Commerce.
"What remains (of the civil nuclear agreement) is the actual commercial deal to be negotiated and the financing to be negotiated. That I think is moving forward," Assistant Secretary of State for South and Central Asia Nisha Desai Biswal said.
"While in India, the Assistant Secretary will meet government leaders to discuss trade and business ties, as well as a range of bilateral, regional, and global issues to deepen the US-India strategic partnership," the State Department said.
"The other focus is on clean energy. Here the Indians want to visit Tesla and hopefully announce a Tesla partnership/venture with India focusing on their battery storage system for solar," Biswal said.
In her address to the Indian Ocean Conference 2016 in Singapore last week by India Foundation, Biswal said United States supports greater economic connectivity in the Indian Ocean region.
"The most important outcome in my mind of the visit this week and of the years of effort that preceded it is the clear and compelling vision that was laid out by Prime Minister Modi before joint session of the US Congress," Assistant Secretary of State for South and Central Asia Nisha Desai Biswal said.
Modi is coming to the US on the invitation of US President Barack Obama for a meeting at the White House on June 7. He has also been invited by House Speaker Paul Ryan to address a joint session of the Congress.
According to Vijay Sazawal, International Atomic Energy Consulting, Westinghouse and Nuclear Power Corporation of India Limited (NPCIL) are making good progress in reaching a final closure on the sale of AP-1000 reactors to India.
"For India to attract the investment it needs, and to expand trade, it will first need to modernise and reform its economic governance -- to improve its ease of doing business," said Assistant Secretary of State for South and Central Asia, Nisha Desai Biswal.
"As a regional power that is committed to advancing the rules-based international order, India has become a key player and an important partner in advancing maritime security in the Indo-Pacific," Assistant Secretary of State for South an Central Asia Nisha Desai Biswal told a Washington audience.
"The (US) President has made the statement (endorsing India as a permanent member of the UN Security Council), not once but on multiple occasions. And no one is walking away from the commitment made to support India's inclusion," Assistant Secretary of State for South and Central Asia Nisha Desai Biswal told agency.
"(Prime Minister Narendra) Modi has taken a big stand on the global stage on essentially talking about India and its economic journey," Assistant Secretary of State for South and Central Asia Nisha Desai Biswal said, noting that after he came to power there has been a huge amount of interest in the US private sector.
Modi is expected to travel to the US late September to attend the 70th annual session of the UN General Assembly.
From the US side, the dialogue, the announcement for which was made in New Delhi in January during the India visit of US President Barack Obama, would be co-chaired by Secretary of State John Kerry and the Commerce Secretary Penny Pritzker.
Nisha Desai said President Barack Obama's Republic Day visit to India was "critical not only for the symbolism but also for the important outcomes in advancing our strategic partnership, deepening security cooperation, revitalising the economic partnership, and advancing critical clean energy and environmental goals."
"Modi is welcome to apply for a visa, and obviously that would be considered through the normal process," State Department Spokesperson Jen Psaki told reporters.
US President Barack Obama has nominated an Indian-American woman for the key post of Assistant Secretary of State for South and Central Asia.