Bollywood superstar Amitabh Bachchan has visited British Prime Minister David Cameron at his Downing Street residence after receiving an award for promoting diversity at work.

The actor was presented with the Global Diversity Award at the Palace of Westminster in London on Wednesday (11Sep13) before heading to the U.K. leader's famous address for a charity event.

The Speaker of the House of Commons, John Bercow, handed him the honour before giving him a guided tour of the palace, saying, "(Bachchan is) a Bollywood icon and the most famous Indian film star of all time."

Writing online after the event, Bachchan told fans, "I am simply overwhelmed... No actor has ever been given this privilege... I am blessed. Speakers House over 1000 years old, unimaginable structure and interiors... what an honour, a most rare opportunity to be there. And a rare visit to the Monarch's bedroom! Where the to-be-Coronated King or Queen spends the night before the crown is put on."

Bachchan was also photographed on the steps of Number 10 Downing Street, in front of the building's iconic black door, and added, "What a moment to meet the Pm, David Cameron and his charming wife who played host to us... That doorway has seen the passage of time and the footfalls of some of the greatest in the Universe... the famous stairway lined with all the photographs of all the Prime Ministers and the various important rooms where decisions and conferences took place... such a honour (sic) for me to be decorated there..."