Anand, who first made it to the World's top-10 in July 1991, has remained India's top-ranked player in all published lists since January 1987.
Aravindh Chithamabaram took his tally to 3.5 points out of a possible four.
Anand played the Italian game with white pieces but could get little out of opening against Vituigov.
India was held to a 3-3 draw by lower-ranked Mongolia in the sixth round as favourites China grabbed the top spot in Pool A in the FIDE Online Chess Olympiad on Saturday.
The India 'A' and 'B' teams registered comprehensive seventh round victories
Joining the elite 2,800 rated chess players club will get Arjun invites for top chess tournaments as well as better appearance fees.
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.
At the end of the fifth round India's Aravindh Chithambaram is now followed by four players -- the Iranian duo of Amin Tabatabaei and Bardiya Daneshvar and Americans Hans Moke Niemann and Sam Shankland -- who all have four points each.
Arjun Erigaisi is in joint lead with 4.5 points from five rounds along with World No. 1 Magnus Carlsen and Vladimir Fedoseev after holding the Norwegian superstar in round five.
Indian Grandmasters Vidit Gujrathi, Pentala Harikrishna and teen prodigy Rameshbabu Praggnanandhaa took a big step towards a spot in the fourth round of FIDE Chess World Cup in Sochi
Teenaged Grandmaster D Gukesh shocked world number 5 Fabiano Caruana as India 'B' pulled off a superb 3-1 win over number 2 seeds USA in the eighth round of the Open section of the 44th Chess Olympiad in Mamallapuram, Chennai on Saturday.
In the women's event, the country's top player Koneru Humpy has 3.5 points with two wins and three draws after five rounds as does R Vaishali who has scored three victories to go with a draw apart from a loss.
India's Dronavalli Harika defeated former world champion Antoaneta Stefanova of Bulgaria in the third round of the FIDE Grand Swiss chess tournament in Riga to grab a share of the lead.
The Indian teams made winning starts in the Open and women's sections of the 44th Chess Olympiad in Chennai on Friday.
Ganges Grandmasters made an important comeback after two losses, defeating Balan Alaskan Knights 8-7
Reigning champions Triveni Continental Kings secured a 10-8 win over upGrad Mumba Masters in the opening match on day five of the Tech Mahindra Global Chess League in London on Monday.
Indian chess great Viswanathan Anand sees signs of greatness in Nihal Sarin but says it's a long journey ahead for the impressive 14-year-old since there has been a trend of players struggling to replicate success as they age.
The men's team comprises Grandmasters D Gukesh, Gujrathi, Erigaisi, P Harikrishna and R Praggnanandhaa.
In the women's event, India's D Harika drew with Nino Bastiashvili (Georgia) to move up to four points. She is in joint third place with six others.
Five-time World champion Viswanathan Anand gave a fine endgame lesson to young Alireza Firouzja, jumping to joint sixth position at the end of 11th round of Tata Steel Masters, in Wijk Aan Zee, The Netherlands, on Saturday. With his second victory, Anand clawed his way back to a fifty percent score and will now hope to end the tournament on a high. At just 16 years, Firouzja is less than one third of Anand's age, and the Indian ace showed that the Iranian still has a lot to learn.
Humpy excited about young Indian chess brigade, says 'can be worthy successor to Anand'
The game incidentally was an old Sicilian where Shirov tried an unconventional ninth move.
India will be fielding three teams each in the Open and women's sections respectively.
Sankalp Gupta becomes India's 71st GM.
Anand has been trying to play very complicated positions and the sixth round was no different.
Viswanathan Anand on Saturday described 17-year-old Grandmaster D Gukesh overtaking him as the highest-rated Indian player in FIDE rankings as a "historic" achievement.
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.
Indian players experienced mixed fortunes in the second round of the FIDE Grand Swiss chess tournament here with two each in the men's and women's sections registering victories.
Any player with a Chess.com blitz or FIDE standard rating of under 2000 could play with former world champion Anand by donating US$150 and with the other four GMs by paying US$25 as registration amount.
World No 3 Shakhriyar Mamedyarov of Azerbaijan, current World Cup winner Levon Aronian and India number two Harikrishna shared the lead with two points apiece.
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.
Legendary Indian chess player Viswanathan Anand has joined hands with WestBridge Capital to launch an academy, through which the five-time world champion will train youngsters.
Anand, as white, had simply an extra pawn and this is where the tenacity of Carlsen came to fore.
Anand moved to joint sixth spot with 2.5 points on a day that saw Firouzja Alireza scoring a sensational victory over super-solid Anish Giri of Holland.
R Praggnanandhaa's ability to defend seamlessly in pressure situations and the deductive mind to quickly gauge his opponent's weakness is the hallmark of a world class player, national coach GM M Shyam Sundar said on Tuesday.
Grandmaster Arjun Erigaisi pipped Rinat Zumabayev of Kazakhstan in the fifth round to share the top spot.
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.
Nihal Sarin closes in on final Grandmaster norm
Former World champion Viswanathan Anand and India cricketer Yuzvendra Chahal among others took part in an online chess charity event, raising Rs 8.8 lakh for the waste pickers' community fighting the coronavirus pandemic. "Chess For Charity", held on Saturday on chess.com, saw India No.1 Anand, No. 2 Vidit Gujrathi, Grandmaster Nihal Sarin, Woman Grandmaster Tania Sachdev and Croatia's Antonio Radic take on a team of comedians comprising Biswa Kalyan Rath, Samay Raina, Abhishek Upamanyu and Aakash Mehta.
The Armenians protested for a long time delaying the start of the second round of matches before withdrawing following rejection of their appeal.