World number four Saina Nehwal has stormed into the quarterfinals of the Indonesia Super Series. In Jakarta on Thursday, Saina registered a thumping 21-18, 21-9 win over 16th ranked Petya Nedelcheva of Bulgaria. The Indian, seeded fourth, will next face eighth seeded Dane Tine Baun, who beat Ayane Kurihara of Japan 21-12, 21-16. Saina is chasing a hat-trick of titles at the Indonesia Super Series. In the women's doubles second round, Jwala Gutta and Ashwini Ponappa went down to the sixth seeded Indonesian pair of Meiliana Jauhari and Greysia Polli 20-22, 21-18, 18-21. Last night, the men's doubles pair of Rupesh Kumar and Sanave Thomas crashed out in the first round. The lost to British pair of Anthony Clarke and Chris Langridge 21-18, 17-21, 16-21.