Asian champion shot-putter Manpreet Kaur has been caught in the dope net after testing positive for a banned stimulant, a massive embarrassment for the country which might  result in losing the gold medal clinched by her earlier in July.

Kaur, who won a gold medal in the recently-concluded Asian Athletics Championships in Bhubaneswar, tested positive for stimulant dimethylbutylamine.

The test was conducted by National Anti-Doping Officials during the Federation Cup National Championships held in Patiala from June 1-4.

She has not been put under provisional suspension as dimethylbutylamine is a specified substance under the WADA Code but India will lose the gold medal she won in Bhubaneswar if her confirmatory urine sample 'B' test also returns positive.

"Manpreet has tested positive in a test conducted during the Federation Cup in June. Her urine sample has been found to have stimulant dimethylbutylamine," an Athletics Federation of India official said.

"We have been notified by NADA about this last night," he said.

When contacted for a response, Manpreet's coach Karamjeet, who is also her husband, said, "we have not yet been told about anything."

According to sources, this is the first time that an athlete has been caught for using dimethylbutylamine, which is structurally related to methylhexanamine, a stimulant which was found to have been used by several sportspersons just before the 2010 Delhi Commonwealth Games.

Manpreet has already qualified for August’s World Championships to be held in London but the latest development may rule her out of the mega-event.

"We have not thought about it (about her World Championships participation). But we cannot lose our face on that big stage. We have to figure out about that," the AFI official added.

Manpreet had set a national record in the first leg of the Asian Grand Prix meet in Jinhua (China) with a throw of 18.86m which fetched her a gold as well as a World Championships berth.

Later, she won a gold each in the Federation Cup, Asian Championships and the National Inter-State Championships which concluded at Guntur on Tuesday.