He is the youngest Indian to achieve the feat at 12 years, seven months and 17 days, erasing the mark set by his state-mate R Praggnanandhaa in June last year.
Tamil Nadu lad D Gukesh on Tuesday became the second youngest Grandmaster in the world and the youngest Indian to achieve the feat at 12 years, seven months and 17 days, erasing the mark set by his state-mate R Praggnanandhaa in June last year.
He achieved his third and final GM norm at the ongoing 17th Delhi International Open Chess tournament in Delhi after beating compatriot D K Sharma in the ninth round.
Gukesh becomes India's 59th Grandmaster.
Ukraine's Sergey Karjakin remains the youngest-ever Grandmaster, having achieved the feat at the age of 12 years and seven months in 2002.
In December, the Chennai boy had narrowly missed on the record when he lost his third round game against GM Daniele Vocaturo of Italy at the Sunway Sitges International in Barcelona.
Gukesh, however, recovered and he put that setback behind him to beat and has now beaten the record held by his friend Praggnanandhaa, who was 12 years and 10 months old when he became India's youngest Grandmaster.
The youngster, who idolises the legendary Bobby Fischer and India's own Viswanathan Anand, was delighted on achieving the feat.
"I am very happy and excited to have become a Grandmaster. I am delighted to have won the third (GM) norm and the title. I would like to play Anand sir sometime," he said over phone.
"Before the game I didnt feel any pressure, only during the game. I just forgot about the pressure and focused on my game," he added.
He said he was a little disappointed to have missed out on breaking Karjakin's record in Barcelona but felt relieved after a while and focussed on his game.
"I was a little disappointed not to break the record in Spain but chose to focus on the way forward. I also missed out on achieving the record in Mumbai during the Mumbai International Chess tournament due to a
technical issue," he added.
The son of Rajinikanth and Padma, both doctors, the lad picked up the game playing with his parents at home and seeing his interest was enrolled in an academy in the locality.
Gukesh said he did not feel any pressure in the lead-up to the tournament adding there was some pressure when he played in Barcelona with the record on the line.
"I felt some pressure while playing in Barcelona as there was a possibility of my breaking the record. But once I missed the chance the pressure was gone. Now, I am relaxed," he added.
After starting out by playing at home with his parents, he was enrolled in a summer camp and was drawn to the game under the guidance of M S Bhaskar and then a few others, including Vishnu Prasanna.
At the age of seven I joined a summer camp in my school. MS Bhaskar, was my coach there, spotted my talent and encouraged me," Gukesh said of his early days in chess.
He is presently coached by Grandmaster Vishnu Prasad.
A seventh standard student of Velammal Vidyalaya, he said his school had supported him a lot whenever he had to miss classes to play in tournaments.
Gukesh, with a FIDE rating of 2497, said his aim is now to keep improving his game and achieve the Super GM title.
"Now that I have become a GM I can play bigger touraments and will get invitations to challenging events. I want to improve my game and also achieve Super GM title," he added.
The Chennai lad, who trains six to seven hours a day, said he likes to watch Tamil comedy scenes to relax.
Gukesh had secured his first GM norm during the Bangkok Open in 2018 when he finished 27th in a strong field.
His biggest moment came when he won the Under-12 World Cadets Championship with a score of 10 out of 11.
He continued his great run by securing the top spot and winning the GM norm round-robin tournament in Serbia.
Noted chess coach R B Ramesh, who trains Praggnanandhaa, congratulated Gukesh on his achievement.
"So many norms at Delhi open! Congratulations to Gukesh for becoming second youngest GM in the world!," he wrote on his Facebook page.