The 31-year-old Kumar, who won the 69kg title at the 2010 Commonwealth Games and a silver in 2014 (77kg), tested positive for Ostarine, media reports said.
WADA contemplates repeat suspension for Russian Anti-Doping Agency after reports suggests manipulation of Moscow's data
If manipulation is proven, WADA would also have to decide whether it could win cases against Russians with data that is now unreliable
At least 23 drug-related deaths were reported in Punjab in June.
Chief Minister of Punjab Amarinder Singh underwent a dope test on Thursday and urged other politicians to follow suit.
The Punjab Government Employees Organisation accused the state government of targeting them over the mandatory drug test and demanded that ministers and MLAs must undertake the test as well.
Amarinder Singh calls for mandatory drug test on Punjab govt employees in all stages of recruitment, promotion
Punjab Chief Minister Amarinder Singh has ordered a mandatory drug test on government employees in all stages of recruitment and promotion
Pakistan opening batsman Ahmed Shehzad has failed a dope test conducted recently and could face a ban of up to three months, aside from getting dropped for the upcoming tour of Zimbabwe, if latest reports are to be believed.
Yusuf Pathan banned for five months by BCCI after failing dope test; cricketer says he consumed Terbutaline inadvertently
Pathan failed the test during a domestic T20 tournament last year. His sanction will end on 14 January.
Sandeep Yadav, tainted wrestler Narsingh Yadav's ex-roommate, handed four-year ban by WFI for failing dope test
Tainted wrestler Narsingh Yadav's former roommate Sandeep Tulsi Yadav, who had also failed the dope test last year, has been handed a four-year ban by the Anti-Doping Disciplinary Panel of the NADA.
Inderjeet Singh to learn fate after Nada refers dope rule violation to Anti-Doping Disciplinary Panel
The National Anti-Doping Agency on Monday said that shot putter Inderjeet Singh's fate will be decided by its Anti-Doping Disciplinary Panel after he was provisionally suspended for dope rule violation last July.
Indian wrestler Yogeshwar Dutt is not keen to collect the upgraded silver medal from the 2012 London Olympics on humanitarian grounds given that the original second place finisher's positive dope test came after his death
A defiant Narsingh Yadav on Monday demanded a CBI probe into the doping scandal which has jeopardised his participation in the Olympics, alleging that a conspiracy has been hatched to scuttle his Rio dream.
Neither the Indian Olympic Association (IOA) nor the Wrestling Federation of India (WFI) has come out in any way to protect Narsingh Yadav, an athlete that they selected and who has never failed a dope test.
Cricket's world governing body is conducting dope tests on four Pakistani players, including leg-spinner Yasir Shah, suspended for three months earlier this year, team manager Intikhab Alam confirmed Friday.
Fail a drugs test, get suspended: On Sharapova's doping admission, Murray opts for a smash rather than a lob
World number two Andy Murray says Maria Sharapova should be banned after her positive test for meldonium and questioned the Russian's use of the drug for medical purposes.
Days after stunning the sports world by announcing she had failed a drug test at the Australian Open in January, Maria Sharapova thanked her fans for their "wonderful words" that put a smile on her face.
'Terrible news for our sport': Nadal, Radwanska, Kvitova shocked by Maria Sharapova's doping admission
WTA Tour players rocked by Maria Sharapova's admission that she had failed a drug test are now waiting to see what sanction the Russian superstar will face.
Sri Lanka on Monday recalled wicketkeeper-batsman Kusal Perera from New Zealand after he tested positive for a banned steroid, the national cricket board said.
Yuvraj, who had a forgettable 15-run outing in Punjab's embarrassing 137-run loss to Railways in the quarterfinals, gave his urine sample as part of a routine procedure an hour after the match.
The players are worried that if they eat meat of animals raised on feed containing clenbuterol, they may end up testing postive for the banned substance.