LONDON, ENGLAND - OCTOBER 29:  Queen Elizabeth II (R) bids farewell to the President of the Republic of India, Prathibha Devi Singh Patil, in the grounds of Buckingham Palace on October 29, 2009 in London, England. The Indian President and her husband, Dr Devisingh Ramsingh Shekhawat, are concluding their three-day state visit to the UK during which they have stayed in Windsor Castle. Getty Images logo Getty Images 28 months ago

LONDON, ENGLAND - OCTOBER 29: Queen Elizabeth II (R) bids farewell to the President of the Republic of India, Prathibha Devi Singh Patil, in the grounds of Buckingham Palace on October 29, 2009 in London, England. The Indian President and her husband, Dr Devisingh Ramsingh Shekhawat, are concluding their three-day state visit to the UK during which they have stayed in Windsor Castle.