Ace shuttler Saina Nehwal survived a battle of nerves and overcame the challenge of German Juliane Schenk to enter the quarterfinals of the Indonesian Super Series in Jakarta on Thursday. Sixth seed Saina came from behind to beat Juliane 18-21 21-7 21-19 in a hard-fought match that lasted 46 minutes. In the quarterfinals tomorrow,Saina will take on the winner of the pre-quarterfinal match between world number seven Chen Wang of Hong Kong and Korean Hye Youn Hwang. After losing a close first game,world number eight Saina bounced back in style and spanked the German to draw parity. In the last game,the Hyderabadi ace was lagging 7-11 but a flurry of smashes saw her first narrow the gap and then march ahead 18-17 before eventually sealing the game 21-19. Meanwhile,it was curtains for Aditi Mutatkar in the other pre-quarterfinals after the Pune girl was blown away by Maria Febe Kusumastuti of Indonesia 21-8 21-5 in just 23 minutes.