Britain's Queen Elizabeth II (right), gestures as she talks to Indian Prime Minister Indira Gandhi, at the Rashtrapati Bhavan, the President's Palace in Delhi. File Photo dated November 17, 1983.

Mother Teresa of Calcutta (left), receives the Insignia of the Honorary Order of Merit from Britain's Queen Elizabeth II at the Rashtrapati Shavar in New Delhi. File photo from November 24, 1983. 

Queen Elizabeth II with former President KR Narayanan during her ceremonial reception in Delhi. File photo dated October 13, 1997.

Prime Minister Narendra Modi with Queen Elizabeth II in UK. 

Queen Elizabeth II with former President Pratibha Patil during the latter's ceremonial reception at Windsor Castle in Windsor, UK. File photo dated October 27, 2009.

Britain's Queen Elizabeth II meets, from left Afghanistan cricket captain Gulbadin Naib, Australia captain Aaron Finch, Bangladesh captain Masrafe Bin Mortaza, England captain Eoin Morgan and India captain Virat Kohli during a Royal Garden Party at Buckingham Palace in London, Wednesday, May 29, 2019. 

PM Modi with Queen Elizabeth II in UK.