Vaishali, sister of the Indian chess prodigy and GM R Praggnanandhaa, scored impressive victories over Mariya Muzychuk (Ukraine) and Russia's Valentina Gunina on the opening day of the Blitz championship.
Fabiano Caruana of United States made sure of his maiden title after beating Jan-Krzysztof Duda of Poland.
His semifinal match against Giri went up to 2am and a few hours later, he had to be at his school to take his 11th-class board examination.
Carlsen had previously indicated he would not consider the record truly broken until after two more games as he was not prepared to count two wins he had in the Norwegian league.
Nakamura secured four wins and five draws to stay as the sole leader after nine rounds.
The Serb set up the breakaway PTPA on the eve of the US Open in September and resigned as head of the player council but last month he confirmed that he had been nominated by his fellow professionals for the current elections which he accepted.
"I practice chess based on what I think is a priority, and what I feel like doing. I also read some chess books -- 'Saying No to Chess Principles' by Evgeny Bareev and 'Life and Games of Mikhail Tal"
India chess captain Vidit Gujrathi shared a memory of beating the legendary Viswanathan Anand for the first time and termed it as a special moment of his career.
The announcement was made by Tamil Nadu chief minister M K Stalin on his Twitter page
Viswanathan Anand was held to a draw by Vladislav Artemiev of Russia in the eighth and penultimate round, ending the Indian challenge in the Isle of Man International Chess tournament on Sunday.
A summary of sports events and persons who made news on Thursday
Grandmaster B Adhiban finished tied third at the Chess.com Isle of Man International tournament after beating the highly-regarded Michael Adams of England in the ninth and final round, in Isle of Man (UK) on Monday.
Rameshbabu Praggnanandhaa is just 13 years old but the boy is already going places and this was his second win against a 2700 Grandmaster.
Lesser-known Indian players continued to impress, while the fancied struggled to score, even as overseas Grandmasters took charge in the third round of the World Junior Chess Championships, being played at Hotel Hyatt, in Pune, on Wednesday. S L Narayanan was one of the early finishers, holding second seed and super GM Robin Van Kampen (2641) to a draw, while 10-year-old Nihal Sarin's impressive display again won him many admirers after he held Balazs CSonka (2409) to a draw to remain unbeaten after three encounters against opponents rated higher than 2400.
It's been seven years since a chess player got the Arjuna award and the iconic Viswanathan Anand is hoping that India's triumphant campaign at the online Chess Olympiad will change this when the national sporting honours are announced next year.
At 12 years, seven months and 17 days, Dommaraju Gukesh is the second youngest Grandmaster of all time.
Summary of sports events and persons who made news on Saturday
'I like to challenge myself. Competing against players much younger than me is something that I want to keep doing,' says Chess Legend Viswanathan Anand
'It was a big relief to get it out of the way. Now he can concentrate on future progress.'