Olympic silver medallist P V Sindhu advanced into the women's singles final after registering a hard-fought victory over Indonesia's Gregoria Mariska Tunjung at the USD 350,000 Thailand Open World Tour Super 500 tournament here today. The second seeded Indian continued her unbeaten run in the Thai capital with a 23-21 16-21 21-9 win over Tunjung in a match that lasted an hour.

In what is expected to be a high-voltage summit showdown, Sindhu will lock horns with Nozomi Okuhara in a rematch of the last World Championship, in which the Japanese prevailed. The world no 3 Indian pipped Tunjung to win the first game that went down to the wire, separated by just two points.