A former captain and member of the Sri Lanka squad that won the ICC Cricket World Cup 1996, Mahanama represented his country in 52 Tests and 213 ODIs between 1986 and 1999, in which he scored 2,576 and 5,162 runs, respectively.
Following his retirement from international cricket in 1999, the Colombo-born cricketer made the transition to refereeing and marked his debut in the ODI between West Indies and Bangladesh in Kingstown 2004. In the same series, he made his Test debut and to date, he has refereed in 54 Tests.
"I would like to pay tribute to the staff at the ICC for their support and encouragement over the years, and would also pay a special tribute to my fellow match officials who work extremely hard to ensure that the highest standards of the game are being maintained in all three formats of the game.
ICC's Senior Umpires & Referees Manager, Vince Van Der Bijl, congratulated Mahanama and said: "It is with great pleasure that we welcome Roshan to the ranks of the double centurions for ODI officiating. He has such a passion for the game and its smooth running. Roshan is one the most meticulous match referees renowned for his thoroughness and detailed preparation. Thanks for your years of exceptional service, Roshan.