The 18-year-old Chandigarh golfer, who was six-under overnight and tied-seventh, totalled five-under 283.
His earlier rounds were 72, 69 and 69 and it was his second successive T-15th finish.
Lin Wen-ko of Chinese Taipei cruised to an eight-shot victory to give himself hope of reviving his professional golf career.
Lin, who has been struggling with a hip injury since 2003, closed with a one-under 71 to win his first ADT title with a stunning total of 20-under 268 at the Hsin Feng Golf and Country Club.
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The 41-year-old Lin enjoyed a career breakthrough on the Asian Tour when he won the 2003 Taiwan Masters but had to stop playing professionally after undergoing a hip surgery in the same year.
He felt pain in his hips after the surgery and was forced to put his career on hold as he became a full-time teaching professional. It was only in 2013 when he continued training again.