World number 20 PV Sindhu brushed aside Thailand's Busanan Ongbamrungphan.© AFP Double Olympic medallist PV Sindhu sailed into the pre-quarterfinals but Lakshya Sen made an opening-round exit from the Kumamoto Masters Japan Super 500 tournament on Wednesday. World number 20 Sindhu brushed aside Thailand's Busanan Ongbamrungphan, ranked 11, 21-12, 21-18 in 38 minutes …
