[2] His parents helped him to enroll at the Panadura Cricket Academy, where he eventually honed his skills and techniques from his G. Ranasinghe, as the latter turned out to be his first coach.
[2] Dinura accepted the offer and joined the Royal Panadura under-13 cricket team, for whom he turned out to play in domestic matches for a duration of four years.
[2] He scored three half centuries in four innings, and his rich vein of form with the bat during the tournament, along with his bowling performances, showcased his abilities as an all-rounder, and it impressed the selectors, which propelled him to inch closer to be rewarded a spot in the Sri Lankan national under-19 setup.
[8] In September 2023, in a four-day unofficial youth test held at Rangiri Dambulla International Stadium, against the West Indies under-19 cricket team, he batted in the middle order and scored 150 runs after facing 229 deliveries.
[9][10] In January 2024, he was named in Sri Lanka's squad for the 2024 ICC Under-19 Cricket World Cup which was held in South Africa.