The Commonwealth Games Federation released a statement Monday saying Manju Wanniarachchi had tested positive for a prohibited substance.
Wanniarachchi, who won the 56-kilogram division on a count back against 19-year-old Welshman Sean McGoldrick on Oct. 13, had traces of the banned anabolic agent 19-Norandrosterone, a metabolite of nandrolone, in his A sample.
He has been notified of the finding and has until Nov. 4 to respond before a formal hearing is set, the CGF said.
If Wanniarachchi's 'B' sample confirms the presence of a prohibited substance, he faces having his results nullified, being suspended and stripped of his medal.
McGoldrick would be elevated to the gold medal position in that case.
There were no bouts for bronze at the New Delhi Games, with Tirafalo Seoko of Botswana and Louis Julie of Mauritius awarded bronze medals after losing their semifinals.
Three Nigerian runners and an Indian race walker were confirmed as failing doping tests during the New Delhi Games.
Nigerian 400-meter runner Folashade Abugan tested positive for a steroid and had two silver medals stripped after waiving her right to have a “B” sample tested, the CGF said the morning after the games ended.
She had finished second in the 400 and was part of the Nigerian team which finished second in the women's 4x400-meter relay.
Two other Nigerian runners tested positive for the banned stimulant methylhexaneamine during the games. Osayomi Oludamola was stripped of a gold medal in the women's 100 meters and Samuel Okon, who was sixth in the final of the men's 110-meter hurdles, was also disqualified.
Indian race walker Rani Yadav tested positive for the banned steroid nandrolone after finishing sixth in the 20-kilometer event.
Wanniarachchi, Yadav and Abugan face bans of up to two years.
The CGF conducted about 1,500 doping tests in New Delhi, including medalists in all events.
The World Anti-Doping Agency recently loosened the classification of methylhexaneamine beginning next year to the “specified stimulant” list, which covers drugs that are more susceptible to inadvertent use and can carry reduced penalties.
Sanctions for use of the drug can be reduced if athletes can prove they did not intend to enhance performance.
Penalties can range from a warning to a two-year ban.
WADA said methylhexaneamine was sold as a medicine until the early 1970s and has now reappeared in some nutritional supplements and cooking oils.
