The World Economic Forum officially gets underway Tuesday with Indian leader Narendra Modi delivering the keynote speech.

Modi was meant to be the event's highlight until President Donald Trump decided to come as well. Trump is due to speak Friday, though the U.S. government shutdown has put his presence in doubt.

There will be much interest in Modi, who follows on from Chinese President Xi Jinping's address to the global elite at last year's event. Xi portrayed his country as a champion of free trade on the same week Trump was inaugurated president.

Modi will likely tout India's economic successes and stress that his country is also open for business.

Canadian Prime Minister Justin Trudeau is later due to address the Davos crowd, which is gathering in unusually heavy snowfall.