Defending champions India defeated South Korea 5-1 in the first semifinal in Moqi on Saturday to enter the AHF Junior Asia Cup final.
Drag-flick specialist Supriya starred with a hat-trick through three penalty-corner conversions, while Madhu Sidar and Sukhveer Kaur also scored.
India will face the winner of the second semifinal between hosts China and Japan in the title clash.