The 'Tiger from Madras', as he is fondly called, also became the first undisputed World Chess Champion since 1993 as this world championship was the culmination of the reunification of the chess world.
The nation on Wednesday paid rich tributes to Grandmaster Viswanathan Anands for retaining the World Championship title.
Moments after beating Bulgaria's Veselin Topalov and retaining the World Chess Championship, Viswanathan Anand said the 12th and final game in the contest was the toughest of his career. 'It is certainly the toughest match I have ever played. I can't recall another experience like this,' said the Indian ace, who won by a point: 6.5 - 5.5 to retain the crown he won in 2008.