Dhingra, who earlier won the junior billiards and snooker titles, overcame Mahesh Jagdale of Elphinstone Cricket Club 150-147, 150-37, 132-150, 108-150, 150-105 in the 150-up, best-of-five frames semi-final that lasted a marathon four hours.
Dhingra, ranked No 32 in the world, will meet 10-time state champion Arun Agrawal in the summit clash.
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