Japan's All Nippon Airways, in its website, said, 'Bringing a new attraction flight closer. The only direct flight from Chennai to Tokyo. Chennai will be the third city in India to welcome direct flight from Japan, said Airport Authority of India.

With the new service, Chennai has become the first city in South India to have the flight connectivity to the Narita International Airport.

https://www.ana.co.jp/en/jp/international/promotions/nrt-maa/