Modi shared light moments with the US President. He also interacted with the Chinese premiere Li Keqiang and Malaysian Prime Minister Najib Razak.
Modi and Keqiang posed for the lensmen too.
The prime minister was seen in conversation with Russian PM Dimitry Medvedev, Japenese PM Shinzo Abe and US President Trump.
Prime Minister Narendra Modi arrived on Sunday on a three-day visit to attend the ASEAN-India and East Asia summits where he is likely to reassert India's push for crafting a global approach to deal with growing challenge of terrorism and radicalisation besides pitching for steps to boost regional trade.
On the sidelines of the main events, Prime Minister Modi is likely to have a series of bilateral meetings with a numberof leaders including US President Donald Trump, Japanese PrimeMinister Shinzo Abe, Australian Prime Minister MalcolmTurnbull and Russian Premier Dmitry Medvedev.