In the mixed doubles, the Indian duo of Ishaan Bhatnagar and Tanisha Crasto lost 13-21, 12-21 to the Chinese pair of Feng Yan Zhe and Huang Dong Ping in the first round.
A sensational run over the last two weeks has given wings to Ashwini Ponnappa's Olympics dreams, and the ace Indian shuttler now wants to continue her fine run in the upcoming bigger tournaments to stay on course for a trip to Paris.
Fellow Indian Kidambi Srikanth also jumped two places to sit at the 12th spot, while Lakshya Sen continued to be the best-placed Indian male shuttler at world number 9.
In other India-related results, it was curtains for Ashmita Chaliha, who lost 17-21, 16-21 to Indonesia's world no. 7 Gregoria Mariska Tunjung in 35 minutes. Both teams had received a bye in their opening match.
A former world no. 2, Sindhu has regained her place in the top 5 after three years. The former world champion from Hyderabad resumed her training on Monday after recovering from the injury.
Commonwealth Games champion Lakshya Sen continued to be the best-placed Indian at number seven while former world no. 1 Kidambi Srikanth gained a rung to the 11th position.
The Indian women's badminton team crashed out of the Uber Cup after losing to Japan in the quarter-finals in Aarhus, Denmark on Thursday while the men completed their group engagements in the Thomas Cup with a defeat to China.
This was the third title for the Indian duo -- they had clinched the Abu Dhabi Masters Super 100 and Nantes International Challenge this year.
Indian women's badminton star Saina Nehwal crashed out of the women's singles competition in the first round after a loss to China's Zhang Yiman. She lost the match 17-21, 21-19,11-21. After being a game down, Nehwal made a comeback in the second game but lost the final one.
Lakshya Sen and Saina Nehwal made impressive starts at the Indonesia Masters Super 500 badminton tournament, advancing to the second round of men's and women's singles respectively with contrasting victories in Jakarta on Wednesday.
The Indian men's team will face Chinese Taipei in group C of Thomas Cup Final later in the day.
Tokyo Olympian B Sai Praneeth will lock horns with Japan's Koki Watanabe, while Sourabh Verma faces France's Toma Junior Popov.
Two-time Olympic medallist P V Sindhu rallied from a game down to eke out a hard-fought win over Thailand's Supanida Katethong and enter the semi-finals of the Syed Modi International Super 300 tournament, in Lucknow, on Friday.
Double Olympic medallist PV Sindhu, who is returning from an ankle injury, begins her campaign against former World Champion Carolina Marin of Spain in the first round of Malaysia Open.
The top seeded Indian duo, who reached the semi-finals of the season-opening Malaysia Open super 1000, was scheduled to face Chinese Taipei's Su Ching Heng and Ye Hong Wei in the opening round.
Double Olympic medallist PV Sindhu will spearhead the women's challenge in both the Commonwealth and Asian Games while London Olympics bronze winner Saina Nehwal did not expectedly feature in the squads.
Saina Nehwal produced a fine performance to kick-off her BWF World Championships campaign with a straight game win over Hong Kong's Cheung Ngan Yi.
Seventh seeded Indians Ishaan Bhatnagar and Tanisha Crasto clinched the mixed doubles title with a straight-games' win over compatriots T Hema Nagendra Babu and Srivedya Gurazada.
Tokyo Olympian B Sai Praneeth will meet compatriot HS Prannoy in his opening match, while former Commonwealth Games champion Parupalli Kashyap will square off against a qualifier.
Seventh seed Sindhu lost 14-21 18-21 to Bing Jiao in the women's singles.
The Indian men's team, led by Srikanth, had beaten powerhouse and 14-time champions Indonesia in the final to win the country's maiden Thomas Cup title on Sunday.
It was yet another forgettable outing in Tokyo for Praneeth, following his struggles at last year's Olympic Games where he participated without a proper coach or physio to eventually bow out early.
Two-time Olympics medallist P V Sindhu opted out citing post-Olympics recovery.
Young Indian shuttler Pratul Joshi clinched his maiden international title by notching up a hard-fought win over Aditya Joshi in the $17,500 Bahrain International Challenge badminton final at Segayya in Bahrain.
The World No 11 Srikanth will take on China's Lu Guang Zu in the next round.
Saina Nehwal was forced to retire midway through her opening match but India's young brigade produced a clinical display to notch up a fine 3-2 win over Spain and get off to a winning start in the Uber Cup in Aarhus, on Sunday.
Summary of sports events and persons who made news on Monday
World Championships bronze medallist Simranjit Kaur (60kg) and GeeBee Boxing silver medallist Dinesh Dagar (69kg) confirmed their places in the final, while Ankush Dahiya (64kg) and Ananta Pralhad Chopade (52kg) made it to the semi-finals.
Summary of sports events and persons who made news on Saturday