World number five, Pusarla Sindhu beats Japan's Nozomi Okuhara claiming India's first ever World Badminton Championship title.
No Malaysians are left in the draw with the exits of Lee Zii Jia, Chan Peng Soon and Goh Liu Ying.
Zii Jia defeats Japan's Kenta Nishimoto to set up a clash with current world number one Kento Momota in the last eight.
PSV Eindhoven won 3-2 over Basel.
Federer finally showed the game befitting a 20-time Grand Slam champion.
Federer has not hit top form all week in Basel.
Krajinovic appeared to be on the way to a straight-sets loss in his first meeting with the 20-time Grand Slam winner before the momentum began to turn.
While drug prices in Europe are rising marginally if at all, those in the US have been declining for a year - Basel-based Novartis makes a range of pharmaceutical and consumer healthcare products.
Manchester City secured their place in the Champions League quarter-finals on Wednesday, but did little to enhance their tag as favourites to win the competition as a much-changed side suffered a shock 2-1 home defeat by Basel.
Manchester City midfielder Ilkay Gundogan believes winning the Premier League title early might not be a good thing for the club's Champions League ambitions as any drop in intensity could derail their European campaign.