With the straight-game victory, Sindhu became the first Indian to achieve the feat.
Sindhu, who had finished runner-up at the last edition in Dubai, dished out a superb game, mixing with patience with aggression, to edging the Japanese 24-22, 21-15.
Sindhu, who had finished runners-up at the last edition in Dubai, will have a tough task at hand as she has been clubbed with defending champion Akane Yamaguchi of Japan, World No 1 Tai Tzu Ying of Chinese Taipei and USAs' Beiwen Zhang in Group A.
P V Sindhu opens her campaign in the China Open women's singles against Evgeniya Kosetskaya of Russia, in Fuzhou, China, on Tuesday.
Kidambi Srikanth staged a magnificent comeback to beat five-time World champion Lin Dan of China 18-21, 21-17, 21-16 and enter the men's singles quarter-finals at the Denmark Open on Thursday night. The No.6-ranked Indian ace will meet compatriot Sameer Verma on Friday.
Saina Nehwal breezed into the quarter-finals of the Denmark Open, scoring a 21-15, 21-17 victory over Japan's world No. 2-ramked Akane Yamaguchi on Thursday.
A summary of sports events and persons who made news on Saturday
P V Sindhu said she has a strategy in place to outwit the World No. 1 in Tuesday's singles final at the Asian Games final in Jakarta.
Neeraj's gold and three other athletics silver medals, along with Saina Nehwal's badminton singles bronze, propelled India's overall medal count to 41 (8 gold, 13 silver, and 20 bronze).
Olympic silver medallist PV Sindhu remained in the hunt for a historic Asian Games gold medal after a tense win but Saina Nehwal settled for a bronze following her 10th straight defeat against World No. 1 Tai Tzu Ying.
Following is the schedule of Indian contingent on the ninth day of the Asian Games, on Monday.
Olympic medallists PV Sindhu and Saina Nehwal on Sunday headed for a gold medal showdown at the 18th Asian Games after their quarter-final victories ensured India's first ever women's singles medals at the continental event.
Japan beat China 3-1 in the final of the women's team event to secure the country's first badminton gold medal at an Asian Games since 1998.
India's hopes of winning a medal in badminton team events at the 18th Asian Games went up in smoke after the men's and women's sides bowed out of the competition following identical 1-3 defeats in the quarter-finals in Jakarta on Monday.
In-form PV Sindhu and Kidambi Srikanth will look to break new grounds as they spearhead India's charge for an elusive gold at the 18th Asian Games badminton event which begins with the team competitions, in Jakarta, on Sunday.
P V Sindhu, will have to punch above its weight to salvage any hopes of a medal after being handed a tough draw in the badminton event at the 18th Asian Games.
Indian women's team had won a bronze medal at Incheon four years ago and Sindhu hoped they can change the colour of the medal this time when the multi-sport event gets underway on August 18.
India's PV Sindhu outclassed World No. 2 Akane Yamaguchi in straight games to storm into the final of the World Championships in Nanjing
The Rio Olympic silver-medallist knocked out defending champion Nozomi Okuharabeat 21-17, 21-19 to advance.
Star shuttlers P V Sindhu and Kidambi Srikanth notched straight-game victories to progress to the quarter-finals, but it was curtains for Saina Nehwal in the US $700,000 Malaysia Open World Tour Super 750 tournament, at the Axiata Arena in Bukit Jalil, a suburb in Kuala Lumpur, on Thursday.
A summary of sports events and persons who made news on Tuesday
Saina Nehwal squandered four match points in her singles match as a young Indian women team bowed out of the Uber Cup Final after being hammered 0-5 by five-time champions Japan in a Group A match, in Bangkok.
A summary of sports events and sports persons, who made news on Sunday
In a nail-biting semi-final, fourth seed Sindhu went down fighting 21-19, 19-21, 18-21 to Yamaguchi after battling for an hour and 19 minutes on Saturday.
Sindhu goes down fighting in All England semisSindhu goes down fighting in All England semis
Olympic silver medallist P V Sindhu edged past Japan's Nozomi Okuhara to advance to the semi-finals of the All England Championship, in Birmingham, on Friday.
Indian women shuttlers advanced to the Badminton Asia Team Championship quarter-finals despite a 1-4 loss to Japan in which P V Sindhu notched the country's only win Alor Setar, Malaysia, on Thursday.
Sindhu leads India to 3-2 win over Hong Kong in Asia badminton Team Championship
He is known to be a demanding coach but Pullela Gopichand is of the opinion that Olympic silver medallist PV Sindhu's odd defeats can't be termed as her failure, not even by a single per cent.
Olympic silver medallist P V Sindhu suffered another heart-wrenching defeat against World No 2 Akane Yamaguchi of Japan to finish as runner-up at the Dubai Super Series Final in Dubai on Sunday.
World No. 3 Sindhu beat World No 8 Chen, 21-15, 21-18 in a 58-minute contest at the Sheikh Hamdan Indoor Stadium in Dubai.
World No. 3 Sindhu thrashed Yamaguchi 21-9, 21-13 in just 36 minutes to top Group A in women's singles at the Sheikh Hamdan Indoor Stadium. This was her last group stage match.
The reigning Olympic silver medallist took just 36 minutes to record her 2nd win in the competition.
National badminton coach, Pullela Gopichand, on Wednesday expressed happiness at the performance this year of Indian shuttlers and termed Kidambi Srikanth's feat of winning four Super Series titles as 'phenomenal'.
India's ace shuttler PV Sindhu entered the semi-finals of the Hong Kong Open Super Series after posting a straight-game win over Akane Yamaguchi of Japan.
Second seed PV Sindhu sailed into the women's singles quarter-finals with a comfortable win over Japan's Aya Ohori in the Hong Kong Open Superseries, in Hong Kong on Thursday.
Ace Indian shuttlers Saina Nehwal and HS Prannoy crashed out in the second round of the China Open Super Series after suffering straight game defeats in their respective events.
While Saina made short work of USA's Beiwan Zhang, second seed Sindhu had to dig deep to get the better of Japanese Sayaka Sato.
Three Indians will feature in the semi-finals of the French Open Super Series badminton tournament after Kidambi Srikanth, H S Prannoy and P V Sindhu won their quarter-final matches in Paris on Friday.
H S Prannoy had things his way as he beat Denmark's Hans-Kristian Vittinghus in straight games to progress to the men's singles quarter-finals at the French Open Super Series badminton tournament, in Paris, on Friday.