The other five games, hard fought, were drawn. World No.1 Magnus Carlsen and Andrey Esipenko trail the leaders by half a point.
Former world champion Viswanathan Anand hailed the young GM's achievement.
India's schedule at the Asian Games in Hangzhou, on Tuesday, September 26.
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Four draws and two wins on Under-20 boards helped India pull off the victory against the Chinese.
Grandmaster Vidit Gujrathi won Tata Steel Chess Challengers 2018, at Wijk aan Zee, Netherlands, on Sunday. The victory ensured him qualification for the Tata Steel Masters 2019, where leading chess players from across the world, including World champion Magnus Carlsen, will take part.
India's schedule on Day 4 of the Asian Games on Wednesday, September 27.
Five-time World champion Viswanathan Anand will lead India's charge at the online Nations Cup beginning on Tuesday, where some of the world's best players will face off amid the coronavirus pandemic which has thrown the sporting calendars out of gear. The six-team event, touted to the richest online team tournament, features all the big names in the game with World champion Magnus Carlsen being the only big gun missing from the line-up.
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.
Triveni Continental Kings beat Ganges Grandmasters, led by five-time world champion Viswanathan Anand, to set up a final against upGrad Mumba Masters.
The US team fought back brilliantly after being trounced in Round 1 by India to win the second and the Blitz tie-break 4.5-1.5, emerging victorious in an exciting semi-final in the FIDE Online Chess Olympiad on Tuesday.
The game incidentally was an old Sicilian where Shirov tried an unconventional ninth move.
It has bolstered the home team's medal chances at the 14-day event, which is expected to see massive participation from more than 150 countries.
India suffered a double blow, losing its third and fourth round matches to Europe and top-seeded China by similar 1.5-2.5 margins, on the second day of the FIDE-Chess.com Online Nations Cup on Wednesday. Five-time World champion Viswanathan Anand came up against a strong opponent in Ding Liren and the two agreed to sign peace in 54 moves. P Harikrishna held higher-rated Yu Yangyi to a draw while long-time rivals Koneru Humpy and Hou Yifan drew their game.
Grandmaster Arjun Erigaisi pipped Rinat Zumabayev of Kazakhstan in the fifth round to share the top spot.
The team of Chingari Gulf Titans stunned Mumba Masters by 12:3, while SG Alpine Warriors were upstaged by Triveni Continental Kings
The inaugural edition of the Global Chess League, which aims to revolutionize chess, got underway in Dubai, with the first two matches taking place on Friday.
China would have been among the top medal contenders in the Olympiad and their absence would brighten India's chances.
Krishnan Sasikiran guided Indian men to a 2.5-1.5 win over Czech Republic but the women's team suffered a shocking 1-3 defeat against Hungary in the eighth round of the 43rd chess Olympiad, in Batumi, on Tuesday.
Carlsen continued his dominating run as he took his lead to an almost unassailable five points.
Anand needs to finish in a minimum sixth place in Kolkata, in order to qualify for the grand finale
The experienced Pentala Harikrishna accepted a draw against lower-rated Constantin Lupulescu of Romania to advance to round four at the FIDE Chess World Cup.
Vidit Gujrathi suffers first defeat
The stage is set for the inaugural edition of the Global Chess League to get underway in Dubai.
It took Gujrathi 40 moves to outwit Benjamin and now he shares the lead with six others. The fourth Indian to cross the 2700 ELO rating barrier, Gujrathi will face American Grandmaster Aleksandr Lenderman in the fifth round.
In 2019, World Champion Magnus Carlsen was asked to guess the nationality of the reigning world champion in 2050. He responded: 'India will have had many by then!'
Viswanthan Anand got back into the reckoning by defeating compatriot M Shyam Sundar in a one-sided affair in the Isle of Man International chess tournament on Wednesday. On a good day for Indians, former World junior champion Abhijeet Gupta tamed the highly-regarded Liem Le Quang of Vietnam.
Gujrathi settled for a draw against Russia's Andrey Esipenko to stay in the lead with three points
Highest rated Indian P Harikrishna crushed Max Illingworth of Australia to virtually book a second round berth in the World Chess Cup now underway in Baku, Azerbaijan.
Anand did not quite re-work his energy and lost to Carlsen in the first game of the third day and then made a draw with compatriot Vidit Gujrathi.
Teenaged Indian Grandmaster D Gukesh upset Magnus Carlsen in the ninth round of the preliminary phase of the Aimchess Rapid online chess tournament, becoming the youngest to beat the World champion.
The forum president IM Varugeese Koshy, in a letter appealed to Rijiju that chess players be recognised by the government.
India went down to Rest of the World 1.5-2.5 in the second round of the FIDE-Chess.com Online Nations Cup. Earlier in the opening round, India split points with USA with Humpy posting a win over Anna Zatonkish while the legendary Anand drew with the highly-rated Hikaru Nakamura.
Magnus Carlsen of SG Alpine Warriors defeated Viswanathan Anand and launched his team to the top of the Tech Mahindra Global Chess League in Dubai on Wednesday.
Viswanathan Anand had to be content with a joint third place finish following a draw with compatriot Vidit Gujrathi in the 13th and final round of the Tata Steel Masters, in Wijk Aan Zee, The Netherland.
Reigning world champion Magnus Carlsen of Norway steered clear of the field with another dominating victory over Jan Krzysztof Duda Poland.
Former world champion Viswanathan Anand came into his own with a much-needed win over Jan-Krzystof Duda in 78 moves in the second round after losing to his opponent in the first round.
High-flying with his superman-cap, overnight joint leader Grandmaster Gupta ran out of steam and surrendered to Nakamura on a day when B Adhiban also did well to hold Levon Aronian of Armenia to a creditable draw.