The prime minister's meetings with Abe and Turnbull came a day after he held "very expansive" talks with US President Donald Trump on intensifying overall security and defence cooperation, particularly in the Indo-Pacific region where China is strengthening its military build up.
Dai Bingguo, who served as the China's boundary negotiator with India from 2003 to 2013, told Chinese media, "If the Indian side takes care of China's concerns in the eastern sector of their border, the Chinese side will respond accordingly and address India's concerns elsewhere."
PM indirectly referred to North Korea's proliferation linkages with Pakistan.
Had India agreed to join the trade pact, Indian markets would have been flooded with cheap Chinese products.
'The hardliners in Delhi are in for a big disappointment,' predicts Ambassador M K Bhadrakumar.
Girls in the Kashmir valley hurling defiance at the security forces will detract from the legitimacy of India's response and its standing in the world, says Ajai Shukla.
Sitharaman has completed just 19 days as defence minister and is also pre-occupied with the Gujarat assembly election, notes Ajai Shukla.
Xi will attend the second informal meeting with Modi at Mahabalipuram near Chennai from October 11 to 12 and pay a state visit to Nepal on October 13, Foreign Ministry spokesperson Hua Chunying announced on Wednesday.
'Relations between India and Japan are robust and devoid of either shadow of history or any irritant.' 'In fact, there is plenty of warmth and goodwill earned over history. There are no negatives but only opportunities,' notes Dr Rajaram Panda.
Xi said China is ready to work with Pakistan to forge a closer China-Pakistan community of shared future in the new era.
'Despite the subsequent events at Kargil and the October 12, 1999 military coup in Pakistan, the Lahore initiative firmly established Vajpayee's credentials as a crusader of peace,' says Colonel Anil A Athale (retd).
Defence Minister Arun Jaitley leaves for Tokyo on Sunday evening for a security dialogue with Japan, a visit that acquires huge significance after North Korea's hydrogen bomb test on Sunday morning.
The US also blasted China and Russia for not joining hands with the international community in their efforts to combat the North Korean threat.
India is no longer shying away from playing a role on the regional and international stages and is willing to don a bigger role in regional politics. It is showing traits of a responsible stakeholder in the regional security dynamics, says Dr Rahul Mishra.
'This is a US-India effort and it is not necessarily to counterweight anyone.'
The MEA said it was the Chinese side that recently undertakook activities hindering India's normal patrols in the areas.
'The India-France relationship has been that of the elites of two countries, who appreciate each other's philosophical traditions -- whether it is ancient Indian civilisation and Sanskrit texts or the French tradition of Rene Descartes, Albert Camus, (Jean-Paul) Sartre... This is a drawback. It doesn't create the buzz, the excitement necessary for a relationship. We need more people-to-people contact, especially among students,' says former Ambassador to Paris, Rakesh Sood.
'China knows the best way of twisting the knife in its dealings with India: By launching a major incursion into Indian territory,' says Rajeev Sharma.
'We use the word "historic" perhaps too much, but the prime minister's visit certainly was historic in so many ways.'
Top security experts of India and the US met in New Delhi on Wednesday to discuss various measures, including exchange of technologies, to help each other face challenges like terrorism, cyber crime and ensuring safety of major cities.
'One must remember that a dragon has a forked tongue,' warns Vivek Gumaste.
Modi said India and Russia have been friends for a long time and thanked Putin for inviting him for the first-ever informal meeting at Sochi.
Modi will have a number of high-profile multilateral and bilateral meetings with global leaders including United States Vice President Mike Pence and Singapore premier Lee Hsein Loong.
'The Modi government's greatest blunder is to exploit sensitive external relations in its domestic politics,' says Shekhar Gupta.
The tour is aimed at boosting India's economic engagement with these nations and inviting more investment.
This is the time when the US would need the conceptual strategic thinking of a Henry Kissinger, able to ally diplomatic skills with a well-conceived worldview of what the emergence of a new balance of forces will mean for a US whose ability to shape global events has definitely declined but still exists, says Claude Smadja.
The US is working with India for developing three smart cities --Visakhapatnam, Ajmer and Allahabad
His view will be shaped by his perception of US world interests and India's economic performance relative to China.
A beautiful rendition of 'Vaishnav Jan To Tene Kahiye', a favourite bhajan of Mahatma Gandhi, was sung on the occasion.
'War cannot resolve problems. So wisdom is to resolve diplomatically.'
Army Spokesperson Colonel Aman Anand said troops from China's People's Liberation Army (PLA) 'violated' the consensus arrived at during military and diplomatic engagements on the ongoing standoff in eastern Ladakh, and carried out provocative military movements to change the status quo.
'It is very significant that the president and the prime minister discussed Pakistan's efforts to take action against Lashkar-e-Tayiba and its affiliates.' 'This is something new and it demonstrates a recognition of Pakistan of the threats these terrorist groups pose to Pakistan and pose to other countries.'
'New Delhi showed itself willing -- at least for a period -- to tolerate the risk of conflict and to withstand Beijing's implicit and explicit threats.' 'But it also continued to try to cut some kind of deal with China to reduce tensions.'
"This will be the first dinner for a foreign dignitary at the White House under this administration. So, we think that's very significant," a senior administration official told reporters at the White House on the eve of Modi's arrival.
The United States on Wednesday warned that Pakistan faces a "serious" threat from the Taliban and offered its assistance to fight against terrorism after the recent attacks in Karachi.
Secretary Tillerson met with Foreign Secretary Jaishankar on Friday to discuss the US-India relationship and the agenda for Prime Minister Modi's meetings at the White House on June 26, a State Department spokesman said told PTI.
India's shift towards US companies for technology investments and partnerships fits well with the present government's 'Atmanirbhar Bharat' and 'Make in India' initiatives, say experts.
'Pakistan's trump card is that it is the only credible guarantor on the horizon who can reasonably assure the Western world that Afghanistan will not again become the revolving door for international terrorism.' 'Trust Pakistan to play this card optimally,' explains Ambassador M K Bhadrakumar.
The prime minister also welcomed convergence of views between India and ASEAN for cooperation in the Indo-Pacific region.
'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.'