Star Indian shuttler Lakshya Sen squandered a one-game advantage to lose to Chou Tien Chen of Chinese Taipei in the pre-quarterfinals of the Arctic Open badminton tournament here on Thursday.
The 23-year-old toiled hard for one hour 10 minutes before going down 21-19 18-21 15-21 to his seventh-seed opponent in the second round of the Super 500 tournament.
It was a bad in the office for India as all shuttlers from the country made second-round exits.
Indian qualifier Kiran George, who had defeated World No 25 Wang Tzu Wei of Chinese Taipei on Wednesday, was brushed aside 17-21 8-21 by fifth seed Jonatan Christie of Indonesia in the men's singles event.
Malvika Bansod meekly surrendered (15-21 8-21) to Ratchanok Intanon in the women's singles contest.
Unnati Hooda and Aakarshi Kashyap also lost their respective round of 16 games.
Unnati went down 10-21 19-21 to Canada's Michelle Li, Aakarshi lost 9-21 8-21 to second seed Han Yue of China.
The mixed doubles pair of Sathish Kumar Karunakaran and Aadya Variyath lost 12-21 15-21 to the Chinese combine of Cheng Xing and Zhang Chi .
The women's doubles pair of Rutaparna Panda and Swetaparna Panda will take on top seeds Liu Sheng Shu and Tan Ning later in the day.