While Saina lost 21-16 15-21 17-21 to unseeded Sun Yu of China, Arundhati Pantawane was defeated 13-21 10-21 by third seed Wang Yihan, also of China. Kashyap was defeated 11-21 12-21 by Kento Momota of Japan.
Saina, who was hoping to win her first trophy of the season, started off well, coming back from an early 4-1 deficit to dominate the opening game.
The third and final game was an exciting affair with both players going all out. Sania put up good a fight, winning three consecutive games to draw level at 8-8 before the Chinese came up with an incredible seven point streak to lead 15-8.
The Hyderabad girl was in no mood to go down without a fight and she produced a seven-point streak of her own to draw level yet again at 15-15. However, Sun had the last laugh, taking four points on the trot towards the end to wrap up the match.
Results:
Women's singles: 6-Saina Nehwal lost to Sun Yu (Chn) 21-16, 15-21, 17-21; Arundhati Pantawane lost to Wang Yihan (Chn) 13-21, 10-21
Men's singles: P Kashyap lost to Kento Momota (Jpn) 11-21, 12-21.
