World number 14 Kidambi Srikanth has also withdrawn from the tournament and is in quarantine due to his close contact with Sai Praneeth, BWF said. Srikanth had returned a negative result on Monday.
No Indians featured in the women's doubles and mixed doubles rankings.
But the Indian mixed doubles pair of Arun Vishnu and Aparna Balan suffered a close 18-21, 21-10, 22-24, loss to Russian pair of Evgenij Dremin and Evgenia Dimova, while another pair of Tarun Kona and Sikki N Reddy too went down 13-21, 17-21 against Liao Min Chun and Chen Hsiao Huan of Chinese Taipei.
South Korea ended their 12-year wait for an Uber Cup title with a 3-2 upset of defending champions China that was only decided in the last singles match of the final in Bangkok, Thailand on Saturday.
Confident about their preparation for the upcoming World Championships, India's chief badminton coach Pullela Gopichand said the home shuttlers have the best chance of winning multiple medals at the prestigious tournament next month.
Four Chinese players were given three-month bans for "failing to use best efforts to win" a match at the China Open in 2018.
Defending champion Lin Dan of China and top-seed Malaysian Lee Chong Wei advanced to the second round after notching up straight-set wins over their rivals in the World badminton Championship in Paris on Monday.
'When we are playing at our best, it's very difficult to beat us.'
Doubles specialist Markis Kido won gold at the 2008 Beijing Olympics partnering Hendra Setiawan, a year after the pair won the men's doubles title at the world championship in Kuala Lumpur.
China's former world number one Xie Xingfang announced on Friday that she will retire from badminton after next month's Chinese National Games.
Sindhu had been left in tears after an 'unfair' call by the umpires midway
Top Indian men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty suffered a straight-game loss to seventh seeded English pair of Ben Lane and Sean Vendy 17-21, 14-21 in a last-8 match.
The British government launched the 'India-UK Week of Sport' on Monday to celebrate the incredible "living bridge" between both nations to mark India's 75th year of Independence.
Thomas Cup final: India vs Indonesia
India's badminton great Prakash Padukone will receive the prestigious Lifetime Achievement Award this year from the Badminton World Federation (BWF).
P V Sindhu hopes to continue her rich vein of form in upcoming events, including the Birmingham Commonwealth Games, after winning the Singapore Open on Sunday.
After Indonesia and South Korea on Friday joined Thailand, Australia, Chinese Taipei and Algeria in pulling out due to the dreaded disease
The Badminton Association of India (BAI) has urged its players and officials to "keep a positive frame of mind" and "stay home" to contribute in the fight against the dreaded COVID-19 pandemic, which has resulted in a nationwide lockdown.
Star Indian shuttler HS Prannoy said the mentality of not giving up without a fight kept him motivated during the epic victory over Denmark in the Thomas Cup semi-finals on Friday.
Tasnim Mir, who earlier this month became the first Indian to claim world number one status in the U-19 category, beat Keyura Mopati 13-21, 21-14, 21-19 to set up a second round clash against Malvika Bansod.
An unnamed Indian woman shuttler was on Tuesday forced to withdraw from the Orleans Masters after a team entourage member tested positive for COVID-19 and she was identified as a close contact.
The apex body had also announced that ranking points earned at tournaments during the original qualification phase will be maintained.
Summary of sports events and persons who made news on Wednesday.
'You can't just have one single player who is individually doing well and be able to win the World Championship or the Olympics.' 'In the Thomas Cup, you need a group of players performing at the same time at their highest level.' 'So that shows how difficult it is, and what a great achievement that is for a country like India to be able to win it.'
India's Tokyo Paralympics gold winner Pramod Bhagat was on Thursday named among six shuttlers for the Male Para Badminton Player of the Year by the sport's world body but none of his compatriots featured in the able-bodied awards' categories.
Kashyap, a Commonwealth Games champion, was trailing 8-14 in the third game when he chose to retire after pulling his calf muscle.
Besides Srikanth, the other players withdrawn are Ashwini Ponnappa, Ritika Rahul Thkar, Treesa Jolly, Mithun Manjunath, Simran Aman Singh and Khushi Gupta.
The Rio Olympics silver medallist couldn't hold back her happiness at being re-acquainted with her gym equipment.
Watch Sindhu putting in hard work for the coveted gold medal here!
The Badminton World Federation (BWF) has said that it will not restrict Chinese players from participating in international competitions due to the coronavirus epidemic. Over 550 people have died in mainland China due to the flu-like virus after it first emerged in Wuhan, Hubei province, late last year and it has also shut down Chinese cities and forced thousands more into quarantine around the world.
India finished with 12 medals, including three gold at the championship.
Two players withdrawn from India Open due to COVID-19
HS Prannoy playws a pivotal role in India's epic triumph by winning the decisive third singles against Malaysia and Denmark
Chirag said "it is difficult to stay motivated" in such uncertain times.
Indonesia's women's doubles pair of Greysia Polii and Apriyani Rahayu and Apriyani are being showered with lots of gifts by the country for winning gold at the Tokyo Olympics.
Para-athlete and current para-badminton world champion Manasi Joshi, climate activist Ridhima Pandey and Isaivani for breaking male domination in the field of Tamil Nadu's Gaana singing also made the list.
Denmark's 2017 World Champion Viktor Axelsen and home favourite Okuhara Nozomi, who won bronze at Rio 2016, are also among the star names.
Malaysian shuttlers Tan Chun Seang and Zulfadli Zulkiffli have received 15- and 20-year bans after being found guilty of offences relating to "betting, wagering and irregular match results", Badminton World Federation (BWF) said on Wednesday.
'They want us to win in every match, like in cricket.' 'It's so tough to play every tournament and win.'
Buoyed by the historic para-badminton World Championships gold, Manasi Joshi has now turned her eyes on making the cut for next year's Paralympics. She will focus on mixed doubles, as SL3 category is not part of the Tokyo Games.