Shot putter Inderjeet Singh's confirmatory B sample also returned positive for banned substances, virtually ending his hopes to compete in the Rio Olympics.
Inderjeet alleges that his sample had been tampered with.
The 28-year-old Inderjeet's 'A' sample had returned positive for steroids androsterone and etiocholanolone barely 10 days ahead of the mega-event in Rio de Janeiro.
The reigning Asian Champion was informed by the National Anti-Doping Agency (NADA). His out-of-competition test was done on June 22.
According to NDTV report, the NADA has asked the Punjab-born athlete, who had won a bronze in the 2014 Asian Games, if he wanted to get his 'B' sample tested. Inderjeet also faces the prospect of being banned for four years under the new WADA Code.
Inderjeet's positive dope test came barely two days after the high-profile scandal involving wrester Narsingh Yadav.
Narsingh, who alleged that he was victim of a conspiracy, got a clean chit from the NADA on Monday.
Inderjeet has also claimed it was a conspiracy against him and his sample has been tampered with.
"This is a conspiracy and there is something wrong in it. This will be checked by the doctors though. I don't want to comment on it but whoever has tried to raise their voice in this country, they are forced to shut up," said Inderjeet.
"My sample has been tampered with. Why would a player take something which is not good for his health?" he added.