Prime Minister Narendra Modi today left this ski-resort town after attending the World Economic Forum (WEF) annual summit and meeting many world leaders and chief executives. In his plenary address, Modi talked about serious challenges and grave concerns facing the world, including terrorism. In a tweet, the prime minister said the WEF has truly distinguished itself a premier forum for deliberations on vital global issues. "This year's @wef theme, 'Creating a Shared Future in a Fractured World' is thought provoking. It compels us to discuss ways to create a better future for our coming generations," Modi said in another tweet. Modi also became the first Indian prime minister to attend the summit in two decades. Among the world leaders, he met his Canadian counterpart Justin Trudeau, Queen Maxima of the Netherlands and Swiss President Alain Berset. More than 3,000 world leaders from business, politics, art, academia and civil society are attending the annual meet, where the Indian presence is the largest ever with over 130 participants.