HS Prannoy, who recently won his first-ever BWF title at Malaysia Masters, couldn't emulate his performace at the Singapore Open as he crashed out of the opening round.
Prannoy lost to Japan's world no. 4 Kodai Naraoka 15-21, 19-21 in 56 minutes.
PV Sindhu, who is slowly recovering from an ankle injury she suffered in August last year, had a similar fate.
The defending champion fought hard against world number 1 Akane Yamaguchi of Japan, but eventually lost 21-18, 19-21, 17-21.