Kidambi Srikanth went down to 19-21, 21-16, 21-18 Lee Dong Keun of South Korea in the quarterfinals of the Japan Open.
PV Sindhu was stretched by Sayaka Takahashi of Japan in her opening match.
The overall tally of six gold, five silver and 14 bronze medals at the end of day six put India in 8th spot in the table.
Some up-and-coming athletes and some struggling veterans would be seeking success in the Asian Games.
In the men's rankings, Indian Kidambi Srikanth dropped two places to be at the eighth place.
Saina Nehwal will face Olympic champion Carolina Marin in the quarters while PV Sindhu will be up against Nozomi Okuhara.
BWF Badminton World Championship 2018: Saina Nehwal, PV Sindhu and Sai Praneeth marched into the quarters but Kidambi Srikanth was knocked out in the 3rd round.
Kidambi Srikanth will face another unseeded opponent in Malaysian Daren Liew in the next round.
BWF Badminton World Championship 2018: PV Sindhu records comfortable victory over Fitriani in the second round.
Saina Nehwal defeated Aliye Demirbag of Turkey in straight games to enter the third round.
BWF Badminton World Championship 2018: Saina Nehwal clinches victory in straight games to enter third round.
Kidambi Srikanth will start his campaign against Nhat Nguyen of Ireland.
BWF Badminton World Championship 2018 HS Prannoy vs Abhinav Manota: HS Prannoy outclassedAbhinav Manota 21-12, 21-11 in 28 minutes.
Despite her runner-up finish at the Thailand Open, PV Sindhu is still placed at No.3 while her compatriot Saina Nehwal remained on 10th.
India will be represented in the men's singles category by Sameer Verma and Parupalli Kashyap.
PV Sindhu advanced to the pre-quarterfinals of women's singles after registering a win over Thailand's Pornpawee Chochuwong 21-15, 19-21, 21-13.
Tai Tzu simply toyed with Sindhu as the Indian made judgement errors and missed the lines, sandwiched with some brilliant returns.
After a 42-minute battle, Srikanth lost 13-21 13-21 to the world no 11 Momota, who registered his 21st consecutive wins in the Malaysian capital.