Roshan is the 36th Sri Lankan test cap where he played against Pakistan at Colombo in 1985/86. Although he
averaged less than 30 at
Test cricket, he did score four
centuries, including a top score of 225 for the
Sri Lankan cricket team against
India at
Colombo, where he shared a then world record second wicket
partnership of 576
runs with
Sanath Jayasuriya. This record was surpassed in July 2006 as the largest partnership in Test match history by fellow Sri Lankans
Kumar Sangakkara and
Mahela Jayawardene who put on 624 against
South Africa. The partnership between Jayasuriya-Mahanama still stands as the highest partnership for the second wicket in Test cricket. Roshan Mahanama established himself as stylish opening batsman in the late 1980s & early 1990s under the captaincy of
Aravinda de Silva. In the
1992 Cricket World Cup, Roshan Mahanama was selected as opening batsman along with M.A.R. Samarasekera & U.C. Hathurusingha, scoring 59 runs off 89 balls v.s. Zimbabwe, 80 runs off 131 balls v.s. New Zealand & 68 runs off 121 balls v.s. South Africa. He captained the depleted Sri Lankan team at the
1994 Austral-Asia Cup which was held in Sharjah whereas main players such as Aravinda de Silva and Arjuna Ranatunga pulled out of the tournament for personal reasons. He played a key pivotal role in Sri Lanka's maiden triumph at an
ICC Cricket World Cup event which came in 1996 where Sri Lanka crowned as unbeaten winners of the tournament defeating Australia in the final by 6 wickets which was held in
Gaddafi Stadium, Lahore. 'Retired hurt' is common parlance in cricket, but that is the name former Sri Lankan cricketer Roshan Mahanama chose for his biography, reflecting his feelings after he was not considered for selection in the ODIs and Tests, following the team's disastrous showing in the 1999 World Cup. The authorities told Mahanama that he was dropped to groom young talent. But then players older than him found a place, and that hurt the veteran. As a matter of principle and self-respect he decided to retire. These facts are mentioned in the book 'Retired hurt,' penned by noted Australian sports chronicler Ken Piesse, based on 40 hours of taped narration on Roshan's experience on and off the field. He featured in four ICC Cricket World Cup tournaments in 1987, 1992, 1996 and 1999 during his international career and retired from international cricket following the 1999 World Cup. ==Match referee==