Prithu Gupta's achievement came 31 years after Viswanathan Anand had become India's first Grandmaster.
Gukesh's parents said that they have exhausted all their savings.
Magnus Carlsen won three successive rapid-chess tiebreakers in the four-match series against Fabiano Caruana.
India finished sixth in the open section and eighth in women's team category on the final day of the 43rd World Chess Olympiad.
India beat Egypt 2.5:1.5 in open section at the 43rd World Chess Olympiad but the women's team was held to a 2-2 draw.
Former World Champion Viswanathan Anand signed peace treaty after 43 moves with Ian Nepomniachtchi on the top board.
Fifth-seeded Indian open chess team will be up against defending champions US at the 43rd World Chess Olympiad.
Soumya Swaminathan withdrew from a tournament in Iran because of the compulsory headscarf rule in the country.
Viswanathan Anand endured a difficult first day but came storming back on the final day of the World Blitz Chess Championship.
Viswanathan Anand beat World No. 1 Magnus Carlsen to lift the World Rapid Chess Championship title.
Viswanathan Anand crashed out of the World Cup after playing out a draw in a must-win game against Anton Kovalyov of Canada in the second round
Anand's dip in form continued against Kovalyov who kept his nerves in a thrilling game after a speculative piece sacrifice by the Indian ace.
Kasparov, who dominated the game for more than 15 years, will compete against nine top players, including current world No. 1 Magnus Carlsen of Norway, at the Sinquefield Cup in St. Louis, Missouri, they said.
Surya Shekhar Ganguly missed an elementary mate in three moves to let Magnus Carlsen draw with a perpetual check at the World Chess Championship
The highlights of Viswanathan Anand's campaign were the innovative ideas he displayed, while the lone low point was the defeat against Hikaru Nakamura in the third round.
Viswanathan Anand is at the joint fourth spot with three points, 1.5 point behind leader Wesley So.
Viswanathan Anand caught Wesley So completely off guard and the American took a safer route to equality rather than test the Indian in any complex variations.
The tide could have turned differently but it was a difficult chance that Viswanathan Anand missed in his calculation.