The suspect is a 25-year-old resident of Davulagala, Pamunuwa, Kotadeniya.
The arrest was made by the Udunuwara, Davulagala Police during a search operation where the suspect was nabbed with the heroin while on his way in his car to distribute the narcotic substance.
Investigations had revealed that every time the suspect had come to Colombo to participate in the contest, he had brought a stock of heroin to be sold in Udunuwara and adjacent areas.
The raid was made by a team from the Davulagala Police headed by the OIC Inspector Jayampathy Bandara.