Reigning world champion Magnus Carlsen kicked up a storm in September this year when he levelled cheating allegations against US teenager Hans Niemann.
Gukesh's 29-move dismantling of the world champion comes a day after his 19-year-old compatriot Arjun Erigaisi had posted a maiden win over the world champion.
India 'A' has 16 match points. The top-seeded USA roared back into contention with a convincing 3-1 defeat of Turkey and joined India 'A' on 16 points at the Chess Olympiad.
The Tata Steel Masters will be held in Wijk Ann Zee in Netherlands between January 13 and January 29 next year.
This is first time India hosted a chess Olympiad. GM Arjun Erigaisi became the seventh Indian to cross the 2700 ELO rating.
India's challenge ended at the Aimchess Rapid online chess tournament with the trio of D Gukesh, Arjun Erigaisi and Vidit Santosh Gujrathi bowing out in the quarterfinals.