New Delhi: Wrestler Narsingh Yadav flunked a dope test for a banned steroid and his Rio Olympics accreditation has been reportedly withheld by the Wrestling Federation of India (WFI). The Sports Ministry confirmed that a wrestler had failed a dope test but it did not name Narsingh, who booked the Rio berth after claiming a bronze medal in the 74 kg competition of the World Championships last year in Las Vegas. "One wrestler has been detected by the National Anti-Doping Agency (NADA) as dope positive. An Anti-Doping Disciplinary Panel (ADDP) has been constituted by NADA to hear the case. Its first hearing was held yesterday in which the wrestler was given an opportunity to defend himself," the ministry said on Sunday. "After the hearing, the panel has asked NADA for further reports. After these are received, the panel will hold further hearing in the matter. ADDP is headed by a legal expert and includes doctors and sportspersons." The NADA conducted a random dope test on Yadav on July 5 at the Sports Authority of India's regional centre in Sonepat.