It is a biennial competition organised by the Fédération Internationale des Échecs (FIDE), the world body for chess.
The mega event will be held from July 28 to August 10.
The Chess Olympiad has attracted a record 187 countries, with 188 teams in the Open section and 162 in the Women’s section.
It will be a 11-round Swiss League event.
India is hosting the event for the first time ever at Mamallapuram, Chennai.
A record total of 30 Indian players across six teams will take part in the team (Three in open and three in women).
Each team will have a captain and he will decide the team composition.
The India-1 Open team members are Vidit Gujrathi, P. Harikrishna, Arjun Erigaisi, S.L. Narayan, and Sasikaran Krishnan.
The India-2 Open team members are Nihal Sarin, D Gukesh, B Adhiban, R Praggnanandhaa and Raunak Sadhwani.
The India-3 open team consists of Surya Shekhar Ganguly, S.P. Sethuraman, Abhijeet Gupta, Karthikeyan Murali, and Abhimanyu Puranik.
The India-1 women’s team consists of Koneru Humpy, D Harika, R Vaishali, Tania Sachdev, and Bhakti Kulkarni.
The India-2 women’s team members are Vantika Agrawal,Mary Ann Gomes, Soumya Swaminathan, Divya Deshmukh, and Padmini Rout.
The India-3 women’s team members are Eesha Karavade, Pratyusha Bodda, Sahithi Varshini,Vishwa Vasnawala, and Nandhidhaa PV.