A. Lahiru Kumara started his international cricket career for Sri Lanka on October 29, 2016, in a Test match against Zimbabwe.

A. Lahiru Kumara plays for the Galle Marvels in the Lanka Premier League.

A. Lahiru Kumara registered his career-best figures of 6/122 against South Africa in a Test in January 2017 in Newlands.

A. Lahiru Kumara was part of the Sri Lankan Under-19 squad in the ICC Under-19 Cricket World Cup 2016.

A. Lahiru Kumara was not part of the 15-member provisional squad for Sri Lanka in the ICC T20 World Cup 2024.