Olympic silver medallist P.V. Sindhu edged past Sung ji Hyun of South Korea to advance to the final of the China Superseries Premier badminton tournament here on Saturday.The Indian seventh seed lost the first game 11-21 but fought back to snatch the next two games 23-21, 21-19 respectively. The thrilling encounter lasted an hour and 24 minutes.In the final, double World Championships bronze medallist Sindhu will face Chinese Sun Yu who moved past Chinese Taipei's Tai Tzu Ying 21-8, 23-21 in 46 minutes.