Prannoy looked in good touch as he reeled off five points on the trot to zoom to a comfortable 11-4 lead. However, the Indian was guilty of missing the lines twice and also found the net, allowing Wang to cut the deficit to three points at 11-14.
Kidambi Srikanth rallied his way to a thrilling win in a tense decider as India kept alive their hopes of winning a first-ever gold medal at the Asian Games.
'Since I arrived in Sydney I have gastroenteritis and have had diarrhoea, so I have not been at my best physical condition'
Indian men's doubles pair of Manu Attri and B Sumeeth Reddy stunned Olympic silver medallists Goh V Shem and Tan Wee Kiong of Malaysia to enter the quarterfinals of the $ 700,000 Japan Open badminton tournament, in Tokyo, Wednesday.
Marin retained the world title with a 21-16, 21-19 win over the Indian ace.
India's mixed doubles pair of Pranaav Chopra and N Sikki Reddy reached the second round but it was curtains for men's singles shuttlers at the Singapore Super Series, on Wednesday.
Kidambi Srikanth continued his giant-killing spree while Saina Nehwal hardly broke a sweat to advance to the pre-quarterfinals of the USD 350,000 Hong Kong Super Series in Kowloon on Wednesday.
The Indian, who defeated world number one Chen Long in the quarter-finals on Friday, lost 21-12, 17-21, 19-21 in a draining battle which lasted an hour and 11 minutes.
Playing his first final in almost two years, world No. 22 Praneeth lost 21-19, 18-21, 12-21 to the Chinese in the summit clash, which lasted 68 minutes.
India's campaign at the Sudirman Cup ended after they went down 0-3 against top seed and 10-time champions China in the quarter-finals of the mixed team championship in Gold Coast.
Leading Indian shuttlers Saina Nehwal and Kidambi Srikanth won their first round matches in contrasting style at the Star Australian Open Superseries in Sydney on Wednesday.
H S Prannoy went down fighting in the men's singles quarter-finals against world championships bronze medallist Chou Tien Chen of Chinese Taipei, bringing down the curtains on India's campaign at the Japan Open in Osaka on Friday.
"The current border situation is overall stable," the Chinese diplomat said.
It turned out to be a disastrous day for Indian shuttlers at the Hong Kong Open as P V Sindhu, K Srikanth and Ajay Jayaram crashed out of the $ 350,000 Super Series event in the opening round, in Hong Kong, on Wednesday.
Indian shuttlers had a mixed day in the opening round of the China Open with Saina Nehwal and PV Sindhu easing into Round II, while Kidambi Srikanth and Ajay Jayaram making early exits.
This year's All-England Championships is likely to mark the final appearance of five-time champion Lin Dan at the sport's oldest event, as the garlanded Chinese player bids for a berth at the Rio Olympics before a possible retirement.
Summary of sports events and persons who made news on Saturday
Parupalli Kashyap shocked World No 1 Chen Long to make it to the semi-final of the Indonesia Super Series Premier badminton tournament.
Sindhu yet again struggled to buck the trend of early exits
HS Prannoy had almost given up on winning his next title and breaking a six-year long drought before chief national coach Pullela Gopichand instilled in him the belief.
HS Prannoy secured his maiden BWF World Tour title
The reigning world champion duo of Chen Meng and Wang Yidi gasped in surprise seeing the backhand return of Ayhika Mukherjee, who, in part, engineered India's biggest triumph of the Asian Games thus far.
India's No 1 shuttler Saina Nehwal has been seeded fifth and compatriot P V Sindhu ninth in the women's singles at the upcoming Olympics in Rio de Janeiro. In the men's draw, Kidambi Srikanth, who is ranked world No 11, is seeded ninth.
His backhand blocks and forehand low returns reaped dividends but an alert Gemke managed to grab a four-point cushion at the interval.
Olympic silver-medallist P V Sindhu advanced to the semi-finals of the China Open after defeating local favourite He Bingjiao in straight games at the $700,000 Super Series Premier event, in Fuzhou, China, on Friday.
Prannoy took to Twitter to express his displeasure.
A fairytale ending eluded him as Indian shuttler Ajay Jayaram's rampaging run was brought to a halt by defending champion and World No 1 Chen Long of China in the final of the $ 600,000 Korea Open Super Series event, in Seoul, on Sunday.
PV Sindhu survived a scare against Hong Kong's Cheung Ngan Yi before prevailing 19-21, 23-21, 21-17 in a thrilling singles match that lasted an hour and 27 minutes.
Following is India's schedule at the Asian Games in Hangzhou on Saturday, September 30.
'I think for the next generation to come up, we need to put a system in place which actually identifies and nurtures talent. We have grown exponentially but there is lot more which needs to be done' 'It's not only my academy, all academies across the country are running full. There are many, many parents who want their kids to give up everything and concentrate on badminton'
Jonatan Christie gifted Indonesia the Asian Games gold medal they most yearned for when he beat Taiwan's Chou Tienchen in an exciting men's singles badminton final in front of a vociferous home crowd on Tuesday.
India's campaign at the China Masters Grand Prix Gold badminton tournament ended as P V Sindhu and H S Prannoy crashed out of the women's and men's singles after straight-game defeats in their respective quarter-finals, in Changzhou, on Friday.
Fourth seeded Srikanth, who had claimed a silver medal at this year's Commonwealth Games, had to dig deep in his reservoir to outwit fellow Indian H S Prannoy 18-21, 30-29, 21-18 in a thrilling match, clocking an hour and seven minutes.
Double Olympic medallist PV Sindhu's gallant fight ended in agony as India made a dismal start to their Sudirman Cup campaign, going down to the formidable Chinese Taipei in the opening round in Suzhou on Sunday.
The Indian men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty's glorious run at the French Open Super 750 badminton ended tamely after they were beaten by top seeds Marcus Fernaldi Gideon and Kevin Sanjaya Sukamuljo of Indonesia 18-21, 16-21 in the final, in Paris, on Sunday.
The 26-year-old is now the lone Indian survivor in the BWF World Tour Super 750 tournament.
Lee, who was diagnosed with early stage nose cancer last year, said he opted to retire after being told by doctors that his body could no longer take the intense training needed for high-level competition.
He was hailed as the next big thing when he shocked five-time world and two-time Olympic champion, Lin Dan in the final of China Open Super Series Premier event, a performance that also held out promise of a medal at the Rio Olympics.
Indian ace Saina Nehwal's ascent to the top of women's badminton was officially confirmed.
Pusarla Sindhu romped into the final of the World Badminton Championships, trouncing China's Chen Yu Fei 21-7, 21-14 in semi-finals, in Basel, on Saturday.