New Delhi :Prime Minister Manmohan Singh on Thursday hailed chess wizard Viswanathan Anand for becoming a World champion for the fourth time and described him as "grandest of Grandmasters" .
Anand defeated Veselin Topalov in the decisive 12th game of World Chess Championship to retain his title on Tuesday.
The Prime Minister congratulated Anand for his feat and sent him a congratulatory message.
"The championship in Sofia was played in most difficult circumstances and you proved once again that you remained a grandest of Grandmaster," Singh said in his message.
"You have made the country proud and I join the millions of the admirers of the game of chess in celebrating the magnificent triumph," the Prime Minister added.