The triumph entitles Gukesh a clash against reigning world champion Ding Liren of China in the last quarter of the year.
He bagged the Menorca Open crown in April, finished second in TePe Sigeman Chess Tournament in May and also finished joint-fifth in the Sharjah Masters Open tournament.
Caruana kept his slender half point lead going in to the final round in the 10-player round-robin tournament, a part of the Grand Chess tour.
Chess icon Viswanathan Anand feels the current crop of Indian players, that he has had a role in shaping, has turned out to be "great" in grabbing crucial opportunities.
Indian Grandmaster R Praggnanandhaa crashed through the defenses of compatriot Vidit Gujrathi but D Gukesh suffered a shock defeat from a position of strength against Czech Republic's David Navara of in the fifth round of the Prague Masters in Prague.
D Gukesh played out a draw with tournament leader and top seed Fabiano Caruana
'It was a big relief to get it out of the way. Now he can concentrate on future progress.'
D Gukesh started off on a positive note, beating Deac Bogdan-Daniel of Romania
Top seeded Grandmaster Erigaisi Arjun played out a draw with eventual winner Bardiya Daneshvar of Iran in the ninth and final round to finish in the top 10 at the Sharjah Masters International chess tournament in Sharjah.
Vaishali completed the requisite 2500 ELO points Llobregat Open tournament in Spain to become only the third Indian woman after Koneru Humpy and Harika Dronavalli to become a GM.
Another Indian, Arjun Erigaisi could not crack the solid defences of Parham Maghsoodloo of Iran and had to settle for a draw.
Indian Grandmaster Arjun Erigaisi was stunned by Nikolas Theodorou of Greece in the second round of Sharjah Masters chess tournament in Sharjah.
Hundreds of students from the Velammal Vidyalaya, the school where Gukesh studies, lined up at the airport at least one hour before his flight landed to greet the 17-year-old chess prodigy.
Erigaisi Arjun was held to a draw by Alexey Sarana of Serbia
Erigaisi posts 1st win in Chennai GM chess championship
Grandmaster Koneru Humpy will spearhead the Indian challenge in the Women's candidates' chess tournament that will get underway in Toronto, Canada from Wednesday.
Giving prominence to experience over youthful exuberance, five-time world champion Viswanathan Anand feels the three Indian participants remain far from winning the Candidates chess title, saying they "should first settle into the tournament."
Caruana became the sole leader and also got back to number two in live world rankings.
With all games ending in draws, the lead positions remained unchanged and Gukesh continued to be at the top of the tables along with Fabiano Caruana of United States who drew a keenly contested game against Nodirbek Abdusattorov of Uzbekistan.
'The Indian earthquake in Toronto is the culmination of the shifting tectonic plates in the chess world.'
Seventh-round loss gave me energy, motivation to aim for title: Gukesh
India's R Praggnanandhaa became the country's youngest and the world's second youngest Grandmaster at the age of 12 years, 10 months and 13 days after reaching the final round of the ongoing Grendine Open in Italy, on Sunday.
Grandmaster R Pragnanandhaa held tournament leader and defending champion Anish Giri of Holland to a draw on the day.
A lot has been written about Gukesh but have you wondered about how it is to be the parents of a genius and budding World Champion.
India's Arjun Erigaisi defeated top-seed Parham Maghsoodloo of Iran with black pieces in the sixth round of the Chennai Grandmasters Chess Championship in Chennai on Wednesday to move into joint second spot in the standings.
Divya Deshmukh of India outclassed Bulgaria's Beloslava Krasteva to clinch the title in the World Junior Girls' chess championship
Another game to end through repetition of moves was between Gukesh and Gujrathi.
India's R Vaishali crashed through the defenses of former World champion Mariya Muzychuk of Ukraine to move to 3.5 points after the fourth round of FIDE women's Grand Swiss, a part of the World Chess Championship cycle.
Grandmaster D Gukesh endured a heartbreak in the final tie-breaker against Wei Yi of China and had to be content with a joint second place finish at the Tata Steel Masters chess tournament in Wijk Aan Zee, The Netherlands.
Vaishali becomes India's 84th Grandmaster, joins brother Praggnanandhaa in elite club
Praggnanandhaa did not have to sweat hard to hold Caruana under Classical but in the Armageddon the American was a transformed player as he took advantage of his white pieces.
Gukesh never got a chance against Mamedov who is known as a theoretician.
The 22-year-old tied for first place in the US $180,000 33rd World Open, in Philadelphia.
The upGrad Mumba Masters climbed to third place, while the Titans improved their position from the bottom of the scoreboard.
Aravindh Chithamabaram took his tally to 3.5 points out of a possible four.
Vaishali stretched her lead to 2.5 points following her second win under classical time control.
International Master Divya Deshmukh maintained a slender half-point lead after defeating Norman Kseniya of Russia in the eighth round of the World Junior Girls' chess championship in Gandhinagar on Monday.
Gukesh's journey wasn't easy as his family dug into their savings and also turned to crowd-funding to fuel his dream.
Indian Grandmaster R Praggnanandhaa got off to a flier and defeated Firouzja Alireza of France in the Armageddon game in the first round of Norway Chess tournament in Stavanger on Tuesday.
Here's hoping that 2024 is a wonderful year for Sindhu. May she win title after title and may she add to her Olympic medal kitty.