Two Indian-origin ministers in Singapore, Vivian Balakrishnan and K Shanmugam, are playing a key role in facilitating a hassle-free summit between US President Donald Trump and North Korean leader Kim Jong-un here tomorrow. Balakrishnan, Singapore's Foreign Minister, made important visits to Washington, Pyongyang and Beijing in recent days to ensure that there would be no last-minute spoilers for the historic meeting hosted by the city-state. Balakrishnan, 57, is from the ruling People's Action Party. He studied medicine and later pursued postgraduate education in ophthalmology. Shanmugam is Singapore's Minister for Law and Home Affairs and he has the responsibility to make sure that the summit, the first between a sitting US president and a North Korean top leader, goes without a hitch from the security point of view.\u00a0 A lawyer by profession, 59-year-old Shanmugam also belongs to the ruling People's Action Party. Singapore is one of the few countries that have diplomatic relations with both the US and North Korea. Balakrishnan, who received Kim, the Chairman of North Korea's State Affairs Commission, yesterday at Changi Airport, said the summit comes after 70 years of suspicion, war and diplomatic failures. "This is not the way conventional diplomacy would have been conducted, but perhaps you need two very unconventional leaders to have brought us to this stage," he told the BBC."They may be able to pull rabbits out of a hat that the rest of us conventional diplomats would not have been able to do," he said. Still, he noted that decades of tension cannot be resolved in one meeting, although, based on his interactions with their staff and meeting them personally, "both are supremely confident, both are hopeful". Balakrishnan also said that the Singapore government was footing the hotel bill for Kim and his delegation who are staying at the plush St Regis hotel here. He added that the expenditure forms part of the 20 million Singapore dollars (USD 15 million) that Singapore is spending on the summit in all. Of this, half is on security, Prime Minister Lee Hsien Loong said yesterday. Meanwhile, Law and Home Affairs Minister Shanmugam is confident that security is in place for the Trump-Kim summit.\u00a0 "The fact that we prepared this in two weeks, this adds to logistics demands by officers who worked around the clock," Shanmugam said at a security briefing yesterday. "We are confident that we have put security in place. We have 5,000 Home Team officers such as police and emergency response teams like civil defence," he was quoted as saying by Channel News Asia.\u00a0 Shanmugam said that four people have been turned away at Singapore's immigration checkpoints in the lead-up to the summit.