The Tokyo Games are scheduled to be held from July 23 to August 8.
Besides Gurjant, the other player to have tested positive is midfielder Ashis Kumar Topno.
The men's team last participated in an international competition in February last year when they played the FIH Hockey Pro League matches against Australia in Bhubaneswar.
India's other gold medals came in 1966 and 1998, both times in Bangkok.
Indian men's hockey team finish third...
The Indian Women's Hockey Team midfielder Salima Tete was honoured with the AHF Emerging Player of the Year Award.
Navneet Kaur struck twice to help the Indian women's team register a come-from-behind 2-2 draw against hosts Spain.
With eight gold medals, Indian men's hockey team has been the most successful side in Olympic history but since the 1980 Moscow Games, the country has not had a podium finish.
The win confirmed India's berth in the 2023-24 Pro League.
Reid submitted his resignation to Hockey India president Dilip Tirkey, a day after the conclusion of the World Cup in Bhubaneswar
Harmanpreet Singh got his mojo back as he scored a hat-trick to lead India to a rare 5-4 win over Australia
India suffered an embarrassing 0-7 drubbing at the hands of defending champions Australia to settle for a silver medal
The Indian men's hockey team, which ended a 41-year medal drought by clinching a bronze medal in Tokyo, rose to 3rd in the International Hockey Federation (FIH) World Rankings, behind Belgium and Australia, respectively.
The FIH Hockey Pro League matches between India and Great Britain, scheduled for May 8-9 in London, were on Wednesday postponed following the UK government's decision to add India to the travel 'red list'.
Harmanpreet Singh had also captained the side in the recent series against Australia, where the side fought hard before losing the five-match rubber 1-4.
The Indian team will begin its campaign in Pool D against Wales on Saturday before taking on formidable Germany on Sunday following the final tie against Malaysia.
Summary of sports events and persons who made news on Monday.
However, with the Asian Games now postponed to next year owing to the COVID-19 situation in China, HI decided to pick a strong team for the prestigious event, scheduled to begin from July 28.
India's star drag-flicker Harmanpreet Singh was on Tuesday named among the five nominees for the men's Player of the Year honour.
Forward Shamsher Singh on Monday said winning the Olympic bronze medal was just ticking off one box in the new beginning for the Indian men's hockey team, which aspires to be the world number one side.
Olympic medal-winning defender Amit Rohidas will continue to lead the Indian men's hockey team in the crucial last leg of the 2021-22 edition of the FIH Pro League
Veteran goalkeeper PR Sreejesh on Monday said the Indian men's hockey side's main focus is qualifying for the Paris Olympics by winning the Asian Games this year besides giving opportunities to youngsters.
With exactly a year to go for the deferred Tokyo Olympics, India hockey captains Manpreet Singh and Rani Rampal are confident of a good showing at the Games.
The 20-member squad also includes goal-keepers PR Sreejesh and Krishan Bahadur Pathak; defenders Harmanpreet Singh, Amit Rohidas, Surender Kumar, Varun Kumar, Jarmanpreet Singh and Jugraj.
India hockey captain Manpreet Singh considers the recent success against reigning Olympic champions Argentina a big confidence-booster, but insists that the team still needs to address some grey areas as it pursues a podium finish at the Summer Games in Tokyo later this year.
Under Manpreet's captaincy, the Indian team has achieved important milestones,
India will aim for their first podium finish in 48 years in the men's Hockey World Cup as they begin their campaign with a tricky match against Spain in Rourkela on Friday.
The Indian men's team was scheduled to play against Germany in Berlin on April 25 and 26 before taking on Great Britain in London on May 2 and 3.
As per some media reports, Hockey India has informed the International Hockey Federation (FIH) that there will be no HIL in 2018 because of financial concerns related to some franchises.
India's men's hockey team chief coach Graham Reid has told his players to keep their emotions in check and avoid cards against a strong opponent like Belgium in the Tokyo Olympics semi-finals on Tuesday.
International hockey can resume only after COVID-19 vaccine is developed: FIH
Harmanpreet Singh won the men's Player of the Year award and Gurjit Kaur was recognised as the best player in the women's section. Veteran P R Sreejesh and Savita Punia won the best goalkeeper awards in the men's and women's section, while young striker Sharmila Devi (women) and Vivek Sagar Prasad (men) were adjudged best rising stars.
Hockey India said it has drawn up a list of competitions both for the senior men and women's teams in the run-up to next year's Tokyo Olympics. The detailed plan involves playing a number of matches against top teams in the world.
With the 2020 Tokyo Summer Games being postponed by a year because of the COVID-19 pandemic, Sardar feels the Indian team will get some time to work on its grey areas and unearth new talent.
List of international sports events affected by the coronavirus that has killed over 900 people and infected more than 40,000 in China
The International Hockey Federation has confirmed India's withdrawal from its ambitious Pro League, one of FIH's flagship tournaments offering Olympic qualifying berths to the top four teams in both men's and women's events.
Summary of sports events and persons who made news on Sunday.
Summary of sports events and persons who made news on Saturday.