Former Congress president Sonia Gandhi will celebrate her 77th birthday on December 9. Born on December 9, 1946, Sonia Gandhi, former Prime Minister Rajiv Gandhi's wife, was the longest serving president of the Congress, having been elected since 1998, according to the party's official website.
 
Sonia Gandhi was first elected as a Member of Parliament from the Amethi parliamentary constituency in 1999, following which she became Leader of the Opposition in the Lok Sabha. In the 2004 General Elections, she led the electoral campaign of her party which secured the largest number of seats.

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