In a gruelling three set match, sixth-seed Saina beat Lin 12-21, 21-18, 21-19 to win the series.
Earlier, the Hyderabadi teen had turned things around in dramatic fashion, stunning former World No. 2 Lu Lan of China 25-23, 21-19 to storm into the final of the Indonesia Super Series, her maiden entry at this level.
Saina beat seventh-seed Lu 25-23, 21-19 to set up the title clash against Lin Wang.
Appreciating the young player's victory which has set a milestone for the Indian badminton, the government has awarded her with a cash price of mere 2 Lakhs.
Saina Nehwal is being trained under former badminton national champion P Gopi Chand in Hyderabad. It was P Gopi Chand who won India's last major badminton title of All-England Open Badminton Championship in 2001.