[3] He competed in the men's 73kg event at the 2014 Commonwealth Games and reached round of 16 before being eliminated by Jake Bensted.

[5][6] He clinched a silver medal in the 73kg event at the 2016 South Asian Games.

He secured a gold medal in the 73kg category at the 2019 South Asian Games.

Chamara has qualified for the 2020 Summer Olympics through an invitation from the Tripartite Commission, and will be Sri Lanka's flag bearer at the Parade of Nations alongside gymnast Milka Gehani.

This biographical article related to Sri Lankan judo is a stub.