Modi is likely to seek support of Switzerland and Mexico for India's membership of the 48-member Nuclear Suppliers Group as both these countries are key members of the elite group. The issue is likely to figure during Modi's meeting with Obama in Washington.
Amid souring ties, the president visited Beijing for three days. On his return to India, a hope of better ties has arisen, says senior correspondent R Rajagopalan, who travelled with Pranab Mukherjee to the Asian superpower.
'A lack of strategic trust and the 'persistent security dilemma' prevails between India and China,' points out Dr Rup Narayan Das.
'By his very presence in Delhi on Republic Day, Obama is revisiting the most defining relationship of the 20th century after a period of stagnation,' says Ambassador T P Sreenivasan.
'Just how strong were the ties between the world's largest and oldest democracies that an incident involving a diplomat and a maid led to anger threatening the relationship itself? Or had the relationship been weakening in the past few years, masked by the empty symbolism of State dinners, asks Devesh Kapur.
Furthering Indo-US cooperation on terrorism, Prime Minister Narendra Modi and President Barack Obama on Tuesday agreed to make "joint and concerted efforts" to dismantle safe havens for terror and criminal networks like Lashkar-e-Tayib, Jaish-e-Mohammad, Dawood-company, Al Qaeda and the Haqqani network.
'Given the present force levels, India cannot fight and win.' 'India can't hope to terminate the conflict on India's terms and impose the nation's will upon the adversaries,' says Brigadier Gurmeet Kanwal (retd).
The expulsion is likely to cloud India-China ties as Narendra Modi visits China for the G-20 Leaders Summit on September 4-5 and Xi Jinping is scheduled to be in Goa for the BRICS meeting on October 15-16.
"We are committed to building a new India. We have to do this as early as possible," he said.
US Ambassador to India Richard Verma and Assistant Secretary of State for South and Central Asia Nisha Biswal were among the top officials present at the base to receive Modi.
Now, India and US can jets, warships can use Indian bases
Swaraj said there is scope to do a lot more and this would be an important element of their deliberations.
Here is the full text of the joint statement issued by India and the US.
Prime Minister Narendra Modi had gone to China with a bagful of initiatives, but not all seems to have been fulfilled given China's reluctance to go the whole hog with him
'With the recent challenging of the notion of the Indian Ocean Region being India's strategic backyard, China is gradually upping the ante in the maritime realm around India.'
PM Modi seems to be gradually ending India's strategic ambiguity
The BRICS summit made clear that China's support for Pakistan is unwavering. China will continue to pressure India to ease tensions with Pakistan and resolve the Kashmir dispute.
Prime Minister Malcolm Turnbull's first State visit to India is an indication of the success of India's Act East Policy, says Dr Rahul Mishra.
'India can rely on him to fight terrorism in all its forms, including Pakistan-sponsored outfits.'
Moving ahead with their new mantra -- Chalein Saath Saath: Forward Together We Go -- Prime Minister Narendra Modi and United States President Barack Obama on Tuesday vowed to deepen cooperation in every sector for the benefit of global stability and people's livelihoods over the next ten years.
'One must remember that a dragon has a forked tongue,' warns Vivek Gumaste.
'India will keep trying to avoid conflict.' 'This is the moment when we draw a line in the sand.'
The 13-page joint statement issued after Prime Minister Manmohan Singh's annual summit with Russian President Vladimir Putin shows the breadth and depth of relations between the two countries and the trust factor that has been constant element behind it.
One thing Beijing must understand is that India is not obsessed with being a threat to China but only wants a rightful place for itself in the world, says Sanjeev Nayyar.
This is the joint statement issued by the ministry of external affairs on the visit of US President Barack Obama to India.
'This novel format of diplomacy -- the informal summit -- will not only facilitate bilateral communication and reduce miscalculations at the very top level of the two governments, but possibly open the space for China and India to speak in one voice on various issues of mutual concern,' note Feng Renjie and Ding Kun Lei
'If the dimensions of the strategic partnership worked out by India and the US seem like a grand alliance targeted at you-know-who, China had better realise that it has fathered it,' says B S Raghavan, a long time observer of China.
'It is in the interest of both sides that the visit of the US President is seen as being successful. Both sides have invested considerable political capital in it. This rapid exchange of visits and the decisions taken have to be justified, beyond the symbolism, which is no doubt important in itself. This opportunity to impart a fresh momentum to ties should not be missed,' says former foreign secretary Kanwal Sibal.
During his two day visit, Modi is expected to seal a raft of major deals in defence, nuclear energy and hydrocarbons sectors to further cement their 'special and privileged strategic ties'.