The prime minister's race is between Abhisit Vejjajiva, 43, the British-born and Oxford educated leader of the Democrat Party and Samak Sundaravej, 73, a political veteran who leads the newly formed People Power Party, the PPP, the BBC reported Saturday.
Sundaravej is backed by Thaksin Shinawatra, the former prime minister overthrown in a military coup last year who now lives in London and owns the Manchester City Football Club. Shinawatra remains popular in Thailand and has said he will return from exile in February, though he is banned from politics amid charges of corruption, The Telegraph reported Saturday.
Campaigning for Sunday's election has been marked by accusations of cheating and dirty tricks.
Notable deaths of 2014 [PHOTOS]