from 10th August 2000 to 7th December 2001 from 19th November 2005 to 20th April 2010 Ratnasiri Wickremanayake (http://en.wikipedia.org/wiki/Sinhala_language" title="Sinhala language">Sinhala: රත්නසිරි වික්‍රමනායක, http://en.wikipedia.org/wiki/Tamil_language" title="Tamil language">Tamil: ரத்னசிறி விக்கிரமநாயக்க; 5 May 1933 – 27 December 2016) was a http://en.wikipedia.org/wiki/Sri_Lanka" title="Sri Lanka">Sri Lankan politician who was http://en.wikipedia.org/wiki/Prime_Minister_of_Sri_Lanka" title="Prime Minister of Sri Lanka">Prime Minister of Sri Lanka from 2000 to 2001 and again from 2005 to 2010 and has served as Leader of the Opposition from 2001 to 2002 . He was a http://en.wikipedia.org/wiki/Member_of_Parliament" class="mw-redirect" title="Member of Parliament">Member of Parliament representing http://en.wikipedia.org/wiki/Horana" title="Horana">Horana electorate and later http://en.wikipedia.org/wiki/Kalutara_District" title="Kalutara District">Kalutara District. Wickremanayake held many ministerial positions in the http://en.wikipedia.org/wiki/Government_of_Sri_Lanka" title="Government of Sri Lanka">Sri Lankan government, beginning in 1970.