Sadiq Khan of Britain's centre-left Labour Party was sworn in as London's first Muslim mayor on Saturday, promising to be a "mayor for all Londoners" during a multi-faith service.
"I can't believe the last 24 hours. I want to start my mayoralty as Iintend to go on. I want this to be the most transparent, honest and accessible administration London has ever seen," said Khan, 45, during a ceremony at the city's Southwark Cathedral.
Khan also hoped to inspire other Muslims. "I'm hoping the result on Thursday encourages young people to get involved in mainstream politics, encourages Londoners of Islamic faith and other minoritycommunities, encourages British Muslims and others to get involved in civic society and get involved in mainstream politics," he said in an interview with Sky News.
"London is the greatest city in the world," Khan had said after his election victory late Friday.
The son of Pakistani immigrants who grew up on a London council estate said he was both "proud" of the city and "deeply humbled" by his election.
"I never dreamt that someone like me could be elected as mayor of London," he said.
Khan, whose father was a bus driver, studied law and became a human rights lawyer before being elected as a member of parliament for the Labour Party in 2005.
"I want every single Londoner to get the opportunities that the city gave to me and my family - the opportunities not just to survive, but to thrive," Khan pledged.
He promised Londoners "the opportunities to build a better future for you and your family, with a decent and affordable home and a comfortable commute you can afford, more jobs with better pay, not just being safe, but feeling safe, cleaner air and a healthier city."
Khan received 57 per cent of the vote, beating his Conservative rival Zac Goldsmith, who finished with 43 per cent.
Goldsmith said he was naturally "disappointed ... by the result," but went on to congratulate Khan. "I wish him well as he sets out to build on the successes that we have seen under Boris Johnson and to take them even further," he said.