Harikrishna defeated world number one Carlsen in round three of Blitz 1 in 63 moves with white pieces.
India's P Harikrishna shared the top position with Armenian GM Levon Aronian after posting two wins and a draw in three rounds of rapid competition.
Viswanathan Anand ended the Legends of Chess online tournament at the ninth position.
Viswanathan Anand suffered his sixth consecutive defeat with a 2-3 loss to Ian Nepomniachtchi of Russia.
Viswanathan Anand, who had earlier lost to Peter Svidler, Magnus Carlsen and Vladimir Kramnik, went down 2-3 to Anish Giri of the Netherlands.
Viswanathan Anand, who had lost in the first two rounds to Peter Svidler and Magnus Carlsen, went down 0.5-2.5 to Russia's Vladimir Kramnik.
Viswanathan Anand suffered his second consecutive loss in his maiden appearance on the Magnus Carlsen Chess Tour.
Viswanathan Anand is making his maiden appearance in the Magnus Carlsen Chess Tour.
Anand and world champion Magnus Carlsen rang the bell at Eden Gardens on the second day of India's first-ever pink ball Test against Bangladesh in November last year.
Viswanathan Anand was held to an easy draw by Dutch hopeful Jorden Van Foreest in the sixth round of Tata Steel Masters.
Viswanathan Anand remained winless for the fourth round running, while world champion Magnus Carlsen registered his 111th game without losing, surpassing a 15-year-old record.
The Indian Grandmaster Koneru Humpy outwitted China's Lei Tingjie in a dramatic Armageddon battle to win the Women's World Rapid Chess Championship.
Magnus Carlsen has changed his Twitter bio after getting to the top of the English Premier League's official fantasy table.
Magnus Carlsen's fantasy team has some of the biggest names who are delivering in the Premier League.
On the second day of the Kolkata Test, Magnus Carlsen and India's Viswanathan Anand rang the ceremonial bell at Eden Gardens to mark the beginning of the first session.
Viswanathan Anand is in joint third spot with six points along with Ding Liren of China and Anish Giri of Holland, while Magnus Carlsen is on top with 10 points.
Magnus Carlsen defeated Russian challenger Sergei Karyakin in the final phase of four quick-fire extra games at the World Chess Championship. The 12 regular rounds ended in a draw
Almost three weeks after the Chess World Championship between Magnus Carlsen and Sergei Karyakin began, the last scheduled game ended on Monday in a draw - just like nine of the previous 11 games