Top seed Saina Nehwal sailed through her second round tie to enter the women's singles quarter-finals of the $120,000 India Grand Prix Gold at the Babu Banarasi Das Indoor Stadium here Thursday.
The World No.9 had an easy outing against Russian World No.47 Natalia Perminova, winning 21-5, 21-10 in 32 minutes in their first ever encounter.
