PV Sindhu survived a scare against Hong Kong's Cheung Ngan Yi before prevailing 19-21, 23-21, 21-17 in a thrilling singles match that lasted an hour and 27 minutes.
The 27-year-old London Olympics bronze medallist hard broke a sweat as she cruised past her Swiss opponent 21-11, 21-12 in just 33 minutes at the Emirates Arena.
Olympic silver medallist PV Sindhu beat Olympic and world champion Carolina Marin in the Indian Open final, in New Delhi, on Sunday.
Summary of sports events and persons who made news on Sunday.
H S Prannoy scored his second successive victory over three-time Olympic silver medallist Lee Chong Wei, while Saina Nehwal and Kidambi Srikanth also registered contrasting wins to advance to the quarter-finals of the Denmark Open Super Series Premier, in Odense, on Thursday.
Rising Indian shuttler P V Sindhu entered the second round easily but it was Anand Pawar and K Srikanth who created a flutter at the Japan Open as they notched up stunning victories over their higher-ranked opponents in the men's singles competition in Tokyo.
The biggest upset of the day was produced by Hong Kong's Cheung Ngan Yi, who knocked out Olympic champion and last year's finalist Carolina Marin 21-12, 21-19, in a 48-minute clash.
The Hong Kong Open finalist, Sameer reached the quarter-finals with a shocking 21-17, 21-15 win in a 40-minute match.
Parupalli Kashyap came up with a brilliant performance to shock world No 7 Zhengming Wang of China in the US $250,000 India Super Series badminton tournament, in Delhi, on Wednesday.
Summary of sports events and persons who made news on Sunday.
A summary of sports events and persons who made news on Wednesday.
A summary of sports events and persons who made news on Thursday.
A summary of sports events and persons who made news on Thursday