The former World Champion reaches the pre-quarterfinals for the first time since 2021.
Given the Indian duo's struggles with fitness and injury over the last few weeks, this was a commendable win.
India's top men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty withdrew from the BWF Sudirman Cup Finals due to illness.
World No 17 Sen, started strongly and took the first game 21-15. But Lin, bounced back to claim the second 21-17.
It's a good sign, best is yet to come: Satwik-Chirag on semifinal finish at Singapore Open
This is the first time that Sindhu has lost to a fellow Indian in an international event in seven years.
Two-time Olympic medallist PV Sindhu faltered in the deciding game to lose to World No. 8 Pornpawee Chochuwong of Thailand in the women's singles second round of the Indonesia Open Super 1000 badminton tournament in Jakarta on Thursday.
Indian badminton stars Satwiksairaj Rankireddy and Chirag Shetty were on Tuesday nominated for the Player Year of the Award by the Badminton World Federation (BWF).
Satwiksairaj Rankireddy and Chirag Shetty's historic title triumph at the Indonesia Open came against their nemesis Aaron Chia and Soh Wooi Yik, who had beaten them in their previous eight matches.
Satwik and Chirag will next face third-seeds Aaron Chia and Soh Wooi Yik of Malaysia.
The top-seeded Indian pair lost in straight games against Muhammad Shohibul Fikri and Bagas Maulana of Indonesia in Birmingham on Thursday.
P V Sindhu and H S Prannoy sailed into the quarter-finals of the women's and men's singles badminton event with easy victories at the Asian Games.
Satwiksairaj Rankireddy and Chirag Shetty assured India of a men's doubles medal at the Badminton Asia Championships after 52 years after making it to the semi-finals in Dubai.
Chirag Shetty and Satwiksairaj Rankireddy bagged the biggest title of their career, winning the French Open Super 750 crown with a straight-game decimation of Chinese Taipei's Lu Ching Yao and Yang Po Han in the men's doubles final in Paris on Sunday.
The 24-year-old from Amalapuram expressed his gratitude to his partner for being there during this challenging time.
P V Sindhu overcame long-time rival Nozomi Okuhara of Japan to advance to the Round of 16.
The men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty crashed out in the second round of the Indonesia Masters Super 500 badminton tournament on Thursday. Sen lost to Japan's Kenta Nishimoto in three games, while Satwik and Chirag lost a close match against Thai combination of Kittinupong Kedren and Dechapol Puavaranukroh.
India's badminton team lost their Group D tie against South Korea 2-3 in the Badminton Asia Mixed Team Championship.
India's lack of bench strength was exposed as they suffered a crushing 1-4 defeat against Denmark in their opening Group D match at the BWF Sudirman Cup Finals.
In women's singles, double Olympic medallist PV Sindhu also dropped one place and is now ranked 16th.
Satwiksairaj Rankireddy and Chirag Shetty achieved a career-best world number three
Sudirman Cup: India bow out after defeat against Indonesia
Satwiksairaj Rankireddy and Chirag Shetty advanced to the semifinals of the Malaysia Open
Sindhu, Lakshya to head India's campaign at Asian C'ships
Satwiksairaj Rankireddy and Chirag Shetty's campaign at the India Open Super 750 badminton tournament ended in the semi-finals after they were outplayed by Malaysia's Goh Sze Fei and Nur Izzuddin in New Delhi on Saturday.
India's sporting fraternity, including Olympic medalists Neeraj Chopra and PV Sindhu, expressed grief and condemnation over the deadly terrorist attack in Pahalgam, Kashmir.
Ashwini and Tanisha, who won the Guwahati Masters super 100 title, last month will take on Malaysia's Pei Kee Go and Mei Xing Teoh next.
No Indians featured in the women's doubles and mixed doubles rankings.
Satwiksairaj Rankireddy and Chirag Shetty advanced to the quarter-finals, while H S Prannoy's valiant fight ended in a narrow second round loss at the Malaysia Super 1000 badminton tournament.
While India have never won the gold at the Asia Mixed Team Championships, they did secure mixed team gold and silver at the Commonwealth Games in 2018 and 2022.
Satwik-Chirag had lost each of the two semifinals in straight sets and their aim would be to go the distance in the upcoming tournament.
Despite the name, Indian success at the tournament hasn't been particularly regular with none from the host nation winning any title in the past two editions.
Prannoy fought back to level at 13-13, but Popov surged ahead as the Indian crumbled.
Star Indian shuttlers PV Sindhu and Lakshya Sen will spearhead a strong contingent at the USD 250,000 Swiss Open, beginning on Tuesday, aiming to regain top form.
Later, India's challenge came to a crashing halt after the women's doubles pair of Treesa Jolly and Gayatri Gopichand lost their quarterfinals.
Two-time Olympic medallist shuttler PV Sindhu pulled out of the Badminton Asia Mixed Team Championship in China due to a hamstring issue, dealing a huge blow to the country's chances of improving the colour of their medal in the prestigious edition.
Lakshya Sen stunned world No 2 Jonatan Christie of Indonesia in straight games
Satwiksairaj Rankireddy and Chirag Shetty's impressive run at the Malaysia Super 1000 badminton tournament came to an end
The former world number one duo had been sidelined from competitive action post the Paris Olympics due to Satwik's shoulder injury.
The Indian men's doubles pair Satwiksairaj Rankireddy and Chirag Shetty bowed out in the semifinals of the China Masters Super 750 badminton tournament