Top shuttlers P V Sindhu and HS Prannoy progressed to the women's and men's singles pre-quarterfinals with straight game wins on a mixed day for India at the USD 350,000 BWF World Tour Super 500 tournament here yesterday.

Olympic silver medallist Sindhu brushed aside Bulgaria's Linda Zetchiri 21-8 21-15 in the opening round to set up a clash with Hong Kong's Yip Pui Yin. Playing only his second tournament after recovering from an inflammation in his ankle, Prannoy defeated Spain's Pablo Abian, who had clinched the White Nights title last Sunday, 21-16 21-19 in a men's singles match at Nimibutr Stadium here.