The 36-year-old goalkeeper, a veteran of 328 international matches, took to social media to announce his decision.
Besides Gurjant, the other player to have tested positive is midfielder Ashis Kumar Topno.
A superbly-executed strategy by coach Antonio Conte helped Italy to a deserved 2-0 win over Belgium in their Euro 2016 opener with outstanding goals by Emanuele Giaccherini and Graziano Pelle on Monday.
Argentina got their World Cup qualifying campaign off to the perfect start on Thursday when Lionel Messi's early penalty gave them a 1-0 win over Ecuador in a lacklustre match in Buenos Aires.
While the tournament saw the emergence of young stars, the usual suspects, the big names flattered to deceive.
Two goals each for Romelu Lukaku and Eden Hazard and one for Michy Batshuayi swept Belgium to a 5-2 victory over Tunisia on Saturday that put them in command of World Cup Group G.
Belgium have retained injured Vincent Kompany in their final World Cup squad but put fellow defender Laurent Ciman on standby in case the Manchester City skipper is not fit for their opening match in Russia.
Belgium coach Roberto Martinez said he was the "proudest man on earth" and lavished praise on his "underdog" team for having the belief to upset five-times champions Brazil on Friday to reach the World Cup semi-finals for only the second time.
Belgium beat England 2-0 in the World Cup third-place play-off on Saturday to secure their best ever finish at a World Cup and send Gareth Southgate's side home with a second straight loss.
Belgium go into Monday's World Cup last 16 match against Japan full of confidence but wary that relying on individual talent against similarly well-organised but less fancied teams has cost them dear in the past.
A superb second-half strike from Adnan Januzaj gave Belgium a 1-0 win over England on Thursday to see them top World Cup Group G with a perfect record and consign England to second place, with both sides already assured of going through to the last 16.
Belgium can not afford any mistakes against Ireland in their second Euro 2016 Group E match on Saturday.
The Euro 2016 draw has opened up for Belgium, but Marc Wilmots' side are still to confirm their title credentials before their round of 16 match against undefeated Hungary on Sunday.
India went down fighting 1-2 to Belgium in a thrilling final of the first-leg of the Four-Nation Invitational tournament at the Blake Park, in Tauranga, New Zealand, on Sunday.
Argentina beat Belgium 4-2 to claim the Olympic title and win their country's first Games medal in men's hockey, edging a close-fought match between two teams few expected to make the final.
Belgium coach Marc Wilmots, in typically self-confident mood, warned that any opponents who opened up against his team would be punished after their 1-0 win against Sweden on Wednesday.
During the Paris Olympics, Chopra had expressed his desire to play in the Diamond League Final to be held in Brussels, Belgium, on September 14. For that to happen, he will have to play at least one DL Meeting -- either in Lausanne on August 22 or in Zurich on September 5.
Tola had an 18-second lead by the 35km mark, which he extended as the Eiffel Tower came into sight and crowds lining the streets roared him on. He became the first Ethiopian winner of the Olympic men's marathon in 24 years.
The 22-year-old said adjusting to shuttle movement in a place near to the sea is different and he expects similar conditions in Paris, where he will travel on July 22.
The Kookaburras had pulled ahead twice in the game, thanks to goals by Tom Wickham, but the Netherlands managed to equalise through goals by Mink van der Weerden and Jeroen Hertzberger.
Belgians tasted bitterness in their beer on Tuesday after their dreams of a first World Cup final were ended by the narrowest of margins by their bigger French neighbours.
The United States continued their dominance of the Olympic 4x400 metres relay on Saturday but only just, as Rai Benjamin held off Botswana's Letsile Tebogo in a thrilling last-leg battle between two individual gold medallists.
Wales's Euro 2016 victory over Belgium, officially the second-best team in football, showed again that you can have all the attacking talent in the world but if you are weak at the back you will be found out at the highest level.
Pan-American champions Argentina defeated Poland 5-1 to set up a Champions Challenge semi-final with Belgium, who outplayed Canada 4-0 in the quarter-finals on Thursday. Argentina, at world No. 8 the highest-ranked team in the tournament, and Belgium have both already secured direct entry to the 2012 Olympic Games.
Reigning world champions Argentina continue to top the chart followed by 2022 World Cup runners-up France, England, Belgium and Brazil.
Marcus Rashford's penalty and a deflected strike from Mason Mount helped England come from a goal down to overcome top-ranked Belgium 2-1 at Wembley on Sunday and climb above them in their UEFA Nations League group.
Eden Hazard is admired for his attacking flair, ability to run at defences and finishing but it is his maverick genius that sets him apart.
Chelsea playmaker Eden Hazard is in the best form of his life but Belgium need all their top players to be better than ever if they are to have any chance of winning the World Cup, goalkeeper Thibaut Courtois said.
"Dull, boring, lifeless -- nothing else to say really. But we're going to win the World Cup anyway so don't worry about us!" said Leighton from Liverpool.
Ukraine will face Belgium, Romania and Slovakia in Group E. Although the Belgians are the group favourites, Ukraine are well-equipped to reach the knockout stage by finishing second.
The Belgians finished first in pool A and hence will be teamed against India.
Belgium passed a test of character with a display of true grit that bodes well for a World Cup quarter-final against Brazil, coach Roberto Martinez said after they came from 2-0 behind to beat Japan 3-2 in injury time.
Harmanpreet Singh's goal from a penalty stroke just a minute from the hooter gave India victory over New Zealand in the men's hockey tournament atthe Olympics on Saturday.
France forward Kylian Mbappe is continuing to recover from his broken nose even though it is not yet sure whether he will play on Tuesday in his side's last group game
The United States team broke their own world record in the 4x400 mixed relay in the opening heats at the Paris Olympics on Friday
Olympic silver medallist Belgium created history by making their maiden appearance in the men's hockey World Cup summit clash, thrashing England 6-0 in a lopsided first semi-final.
Wright blasts Man City's Haaland for throwing ball at Arsenal's Gabriel
Rampant Wales defeated Belgium 3-1 to reach the Euro 2016 semi-finals with a victory that included a sensational strike by Hal Robson-Kanu and a goal for captain Ashley Williams on Friday.
Indian junior women's hockey team goes down against Germany
Belgium and Australia are two world-class teams we saw in the final (in Tokyo). I think they are the benchmark and that's what we need to be aiming for, says India's chief coach Graham Reid.