In his farewell remarks posted on the Chinese embassy website, Sun said it is only natural for important neighbours China and India to have some differences but the key is how to handle the differences.
Taiwan on Sunday expressed gratitude to India and several other countries for their calls for exercising restrain and avoiding unilateral actions to change the status quo in the Taiwan Strait in the face of China's belligerent military posturing following United States House Speaker Nancy Pelosi's visit to the island.
Sun Weidong is an expert on South Asia who worked closely with external affairs minister S Jaishankar.
The Australian High Commissioner had said Australia remains deeply concerned by Chinese actions in the South China Sea that are 'destabilising and could provoke escalation'. In a tweet, the Chinese envoy took objection to his remarks and said they were made 'disregarding facts'.
Weidong said India and China "should live in peace and avoid conflicts."
China's state-run Sichuan Airlines has suspended all its cargo flights to India for 15 days, causing major disruption to private traders' efforts to procure the much-needed oxygen concentrators and other medical supplies from the country despite Beijing reiterating its readiness to help India to deal with the latest surge of COVID-19 cases.
Chinese President Xi Jinping arrived in Chennai to a grand welcome on Friday, a visit that comes soon after the recent episode of turbulence in bilateral ties over India's decision to withdraw Jammu and Kashmir's special status and reorganise the state into two union territories.
India has told China not to "shift goalposts" and "confuse" managing the border affairs and restoring peace at the frontiers with the larger issue of the resolution of the boundary question, which is dealt with by different designated mechanisms.
The Indian nationals, mostly students, research scholars and professionals are working in Indian and international companies in the Chinese province.
Government sources also said there was no question of any discussion on the issue as it is India's sovereign matter but added that Modi will update the Chinese President on the matter if there is a query.
'They also agreed that for the overall development of bilateral relations it was essential to maintain enduring peace and tranquillity in the border areas,' the MEA said in a statement.
New Delhi must clearly demonstrate to Beijing that China will pay a price for its relentless strategic undermining of India, says Ajai Shukla.
In remarks titled 'Implement Consensus and Handle Differences Properly to Bring China-India Relations Back on the Right Track' posted on the Chinese embassy website, Sun spoke of disruptions in the bilateral relationship and outlined five steps to clarify 'some fundamental points'.
'China physically occupies about 45,000 sq km of J&K as claimed by India, including 3,000 sq km captured in the 1962 War and never returned; and 5,180 sq km ceded to China by Pakistan in 1963.' 'It is hard to justify remaining silent about the return of China occupied Ladakh,' observes Ajay Shukla.