Mane totalled 20-under-268 for the week, while Baisoya's tally read 19-under-269.
Baisoya (71) missed a two feet par putt on the last hole even as Mane (68) managed to have the last laugh.
Ahmedabad-based 26-year-old Mane bagged a winning cheque of Rs. 15 lakh to move up from second to first in the PGTI Order of Merit as his season's earnings went up to Rs. 36,58,851.
With his tournament tally of 20-under-268, Mane also broke Chikkarangappa's previous 72-hole course record of 13- under-275, set during last year's TAKE Open.
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Gangjee signed off with an eagle on the last hole.
Bengaluru's M Dharma was tied for sixth along with Delhi golfers Himmat Singh Rai and Shamim Khan at 13-under-275.
Chikkarangappa, another Bengalurean, finished tied 13th at eight-under-280.