Title favourite and world number two Saina Mirza suffered a shock defeat at the hands of unseeded Yui Hashimoto of Japan in controversial circumstances to crash out of the Yonex Sunrise India Open Super Series in New Delhi.
Ace Indian shuttler Saina Nehwal is the first Indian woman to achieve the World No 1 ranking.
Indian badminton ace Saina Nehwal celebrated her No 1 ranking by beating Thailand's Ratchanok Intanon to clinch the India Open $275,000 Yonex Sunrise Super series event at the Siri Fort sports complex in New Delhi on Sunday.
Indian shuttlers Ajay Jayaram, R M V Gurusaidutt and Sai Praneeth entered the pre-quarterfinals of the men's singles event at the $120,000 US Open Grand Prix Gold badminton tournament after victories over their respective opponents.
Defending champion Saina Nehwal and two-time World Championships bronze medallist P V Sindhu advanced to the quarter-finals, but it turned out to be a dismal day for star shuttlers Lin Dan and Lee Chong Wei at the India Open Super Series in Delhi on Thursday.
China and Indonesia won the Badminton Asia Team Championships in the women and men's categories respectively at the Gachibowli indoor stadium in Hyderabad on Sunday.
The Indian men's team beat a depleted China 3-2 at the Badminton Asia Team Championships at the Gachibowli indoor stadium in Hyderabad
Crowned the world number one, Saina Nehwal celebrated her numero uno status with a straight-game demolition of Japanese Yui Hashimoto, while Kidambi Srikanth too saw off Xue Song of China to reach their maiden finals at the Yonex Sunrise India Super Series.