[1][2] In July 2021, he became the first Sri Lankan man to participate at the FIDE Chess World Cup.
He was coached by veteran national chess player Suneetha Wijesuriya in Ananda College.
He was later coached by Sri Lankan international chess grandmaster Romesh Weerawardane in 2013.
[12] Ranindu also took part in the Chess World Cup 2021 which is being held in Sochi, Russia.
[13] He was defeated by Russian grandmaster Grigoriy Oparin in a hard-fought match in the round one of the 2021 World Cup tournament.