Bangkok: Indian shuttler Saina Nehwal lost to Japan's Sayaka Takahashi 21-16, 11-21, 14-21 in the second round.
Although Saina won the first game, Takahashi came from behind to win the second and third games to ultimately win the match.
Earlier in the day, Satwiksairaj Rankireddy and Chirag Shetty progressed to the third round of the Thailand Open as they defeated Fajar Alfian and Muhammad Rian Ardianto 21-17, 21-19.